Summarize the following court judgment. ivil Appeal No. 1795 of 1982. From the Judgment and Order dated 3.2. 1982 of the High Court of Calcutta in Appeal No. 75 of 1981. Shanti Bhushan	 Ms. Lira Goswami	 section Ganesh	 R. Narain and D.N. Mishra for the Appellant. 478 C.S. Vaidyanathan	 S.R. Setia	 K.V Mohan and K.V. Viswanathan for the Respondents. The Judgment of the Court was delivered by K.N. SAIKIA	 J. This appeal by special leave is from the appellate judgment of the Calcutta High Court in Appeal No. 75 of 1981 dismissing the appeal and upholding the judgment of the learned Single Judge granting stay of the appellant 's suit on the respondent 's application under section 34 of the . The appellant as plaintiff has instituted suit No. 736 of 1978 on 29.9.1978 in the original side of the Calcutta High Court against the respondent as first de fendant and Canara Bank as second defendant stating in the plaint	 inter alia	 that the first defendant	 was the sole and absolute owner of two fishing trawlers	 Ave Maria I and Ave maria II	 registered under No. 1567 dated 30th January	 1974 and No. 1568 dated 30th January	 1974 with the Regis trar of Indian Ships	 Cochin that the said trawlers were imported by the first defendant with financial assistance of the second defendant	 Canara Bank	 under Import Licence No. P/CC/2062299 dated 3rd March	 1971 issued by or on behalf of the Chief Controller of Imports & Exports	 Ministry of Commerce	 Government of India	 New Delhi	 that in or about March	 1977 the first defendant as owner agreed to charter and the plaintiff as charterer agreed to take on charter for the purpose of deep sea fishing	 the said two trawlers on the terms and conditions contained in a "Bare Boat Charter Party" dated the 21st March	 1977	 hereinafter called	 the agreement	 executed at Calcutta	 subject to the owner first defendant obtaining the requisite permission in writing from the Chief Controller of Imports & Exports and the No Objec tion Certificate of the second defendant for chartering the said trawlers; that within seven days of receipt of the approval of the Chief Controller of Imports & Exports or no objection certificate from the Canara Bank the first defend ant owner will deliver the said trawlers to the plaintiff charterer at the Port of Vishakapatnam for carrying out the inspection of the said trawlers by its authorised agents to ascertain repairs to be carried out to the trawlers for making them fully operational without any defect whatsoever and also to ascertain the cost of such repairs and thereaf ter the Chatterer will undertake the repairs at the cost of the owner and bring them to fully operational condition without any defect including all aspects of refrigeration equipment; that the charterer will then conduct fishing trials to ascertain actual condition of the trawlers and in case the condition is fully satisfied according to the Charterer	 and the 479 owner furnishes to the Charterer all documents certifying sea worthiness and also supplies proof of compliance of pre condtions	 the Charter hiring shall commence on or from the date fishing trials are ended; that the charterer shall pay to the owner Rs.50	000 per trawler per month payable in advance every month and shall continue to pay up to and including the date of redelivery of each trawler to the owner at Vishakapatnam (unless lost sunk); that he shall keep a deposit of Rupees one lakh per trawler with the owner during the period of the agreement to be adjusted without interest towards the charter hire against the last two months of charter period; that by a Letter No. CG/N 2 143 70 71 dated 18th August	 1977 the Chief Control ler of Imports & Exports granted permission to the first defendant to charter the said trawlers to the plaintiff on a charter rental of Rs.50	000 per month per trawler for a period of three years; that the owner delivered the said two trawlers for repairs to the plaintiff at Vishakapatnam on or about 30th September	 1977 and thereafter on or about 2nd February	 1978 the parties agreed to modify the agreement in the manner stated in a subsequent written agreement dated 2nd February	 1978 executed at Calcutta; and that according to the agreement after modification	 the charter hire com menced from 15.1.1978 and the charter hire revised to Rs.6	25	000 per trawler per year. The plaintiff 's main averments in the plaint are that the permission dated 18th August	 1977 granted by the Chief Controller of Imports & Exports to the first defendant for chartering the said trawlers to the plaintiff was given under the said Import Licence to the first defendant and the permission was given subject to two conditions	 namely	 that the charter rental would be Rs.50	000 per month and that the charter would be for a period of three years but the agree ment dated 21st March	 1977 was	 in fact	 for a period of two years with an option to the plaintiff to continue the hire for a further period of three years and as such the agreement was in contravention of and contrary to the terms of the said permission and consequently to the said Import Licence	 and hence	 illegal	 against public policy and void; that the plaintiff and the first defendant entered into the agreement and its modification dated 2nd February	 1978 on the basic	 essential and fundamental assumption that the trawlers would be made fully operational and free from all defects by effecting repairs as contemplated thereby but the assumption was mistaken and not true and was subsequently discovered to be so mistaken that it rendered the agreement with its modifications void; that pursuant to the agreement the plaintiff paid to the first defendant through the second defendant the initial deposit of Rupees two lakhs in respect of the said two trawlers of the 480 charter rent as agreed up to and for the month of July 1978	 but in or about early September 1978 the plaintiff having discovered the agreement to have been void and illegal called upon the first defendant to take back or obtain permission of the said trawlers lying at Vishakapatnam at the risk and cost of the first defendant but he failed and neglected to do so; and that the first defendant is bound to pay or make compensation for all the advantages which he had received under the agreement and its modifications and the costs	 charges and expenses which the plaintiff has incurred on the said trawlers	 being assessed at Rs. 39	64	34 1 as per Schedule 'D ' to the plaint. In the alternative it has been averred that in supplying the said trawlers the first defendant committed a fundamental breach of the agreement and its modifications which went to the root and affected the very substance of the same and which made its perform ance impossible and such a breach on the part of the first defendant has produced a situation fundamentally different from anything which the parties could as reasonable persons have contemplated when the agreement was entered into	 and as the plaintiff has not been able to use or obtain any benefit out of the said trawlers	 the plaintiff never was nor is bound by the obligation under the agreement and the modification thereof and was entitled to and had duly re scinded the same and the plaintiff had in the premises suffered loss and damages which the first defendant is bound to compensate and such loss and damage is assessed reasona bly at Rs.39	64 341 particulars whereof have been given in Schedule 'D ' thereof; and that the plaintiff is entitled to recover the said sum of Rs.39	64	34 1 as money paid to and or on account of the first defendant and expenses so in curred without any consideration and or for consideration which has totally failed and/or to the use of the first defendant. The plaintiff accordingly claimed	 inter alia	 a decla ration that the agreement dated 2 Ist March	 1977 and the modifications thereof dated 2nd February	 1978 were	 and are illegal	 against public policy and void; a decree for Rs.39	64	341 against the first defendant; alternatively an enquiry into the amount due to the plaintiff from the first defendant and decree for a sum found due on such enquiry; in the alternative decree for the same amount as compensation for loss and damage and or as money paid to or expenses incurred without any consideration or for consideration which has totally failed or to the use of the first defend ant; and further and other reliefs. In the matter of the aforesaid Suit No. 736 of 1978	 hereinafter referred to as 'the suit '	 the first defendant after receiving summons 481 and entering appearance moved on 25th April	 1979 and appli cation under section 34 of the 	 here inafter referred to as 'the Act '	 impleading the plaintiff (instant appellant) as first respondent and Canara Bank second defendant as second respondent stating	 inter alia	 that the agreement as modified on 2nd February	 1978 con tained an arbitration clause; that the agreement has been and is perfectly binding and not violative of the conditions of the permission granted by the Controller of Imports & Exports; that the defects in the refrigeration system as alleged are factually wrong; that the plaintiff	 his serv ants and agents have themselves materially deteriorated the machines and hence no amount was payable to the plaintiff as claimed in the plaint; and that all the disputes	 conten tions alleged to have arisen between the plaintiff and the defendant were wholly covered by the said arbitration clause contained in the agreement which was binding between the parties. Accordingly	 it was prayed that the suit and all proceedings therein be stayed and interim orders	 costs and other reliefs be granted. The plaintiffs filed affidavit in opposition to the application and the applicant first de fendant filed affidavit in reply. The learned Single Judge in his judgment dated 11.2. 1981 held	 inter alia	 that there was no question of inva lidity for non compliance of the conditions of the licence granted to the first defendant applicant as necessary per mission was obtained in respect of the agreement from the Chief Controller of Imports and Exports vide his letter dated 18th August	 1977 and the modification of the agree ment on 2nd February	 1978 could not and did not materially alter its terms to impair its validity and there was sub stantial compliance with the obtained permission; that though in a particular case if there was any doubt about facts	 the matter had to be decided by trial on evidence	 in this case	 having regard to the admitted facts and conduct of the parties	 it was not necessary to set down the matter for trial on evidence to determine the facts as the same could not be disputed; that having regard to the conduct of the parties in admitted documents	 being the licence of the petitioner granted by the Chief Controller of Import & Export in respect of the said two trawlers and the provi sions of the Import and Export Control Act	 1947	 and Appen dix 31 of the Import & Export Trade Control Hand Book for Rules and Procedures	 1979	 the correspondence between the parties before the alleged discovery of purported mistake and illegality by the respondent (plaintiff) and particular ly the letter dated 18th July	 1978 from the respondent No. 1 (plaintiff) to the applicant 1(first defendant) and the Balance Sheet of the plaintiff (Respondent No. 1) I.T.C. Ltd	 for the year 1978	 there is no question of any illegal ity or any mutual mistake; that the alleged 482 fundamental breach is wholly covered by the arbitration clause as it wide enough to include the same; that the arbitration clause is valid and binding between the parties; that the allega tion of breach of contract and the claims made are within the jurisdiction of the arbitrator; and that all the condi tions under section 34 of the Act have been satisfied in this case. Accordingly the learned Judge granted stay of the suit and directed the parties to take immediate steps for initiation of reference under the arbitration agreement. On appeal	 the learned Division Bench by an elaborate and erudite judgment dismissed the appeal holding	 inter alia	 that in the facts and circumstances of the case it could not be held that the trial court erred in exercising its discretion to decide the controversy	 namely	 whether the contract being void the arbitration clause also was void	 in the application without evidence and on the basis of pleadings only	 nor was the discretion exercised improp erly; that the learned Judge was not wrong in coming to the conclusion that the mistake as pleaded as to quality of the goods was not a mistake of such nature as to make the thing contracted for something different	 and in holding that there was no case of mutual mistake of such a type as to quality of the thing contracted for which could have avoided the parent contract which contained the arbitration clause; and that the learned Single Judge was right in so far as he held that the matters were arbitrable apart from the ques tion of illegality of the contract. It was further held that there was no breach of conditions of the permission or the provisions of the Import & Export Control Act to render the contract illegal or void; and that the Court having held that all the contentions and allegations were arbitrable	 the granting stay in the suit was reasonable and proper. Mr. Shanti Bhushan	 the learned counsel for the appel lant submits	 inter alia	 that the subject matter of the suit	 namely	 the question whether the agreement was void ab initio for mutual mistake was not arbitrable at all and the learned Courts below erred in holding so; that even assuming but not admitting that the subject matter was arbitrable	 it having involved complicated questions of facts the court ought not to have exercised jurisdiction on the application under section 34 and in doing so it acted without jurisdiction and	 assuming that the court had juris diction	 it should have decided only after taking oral and documentary evidence and not merely on affidavits; that the agreement itself having been void ab initio due to mutual mistake the arbitration clause	 namely	 clause 18 of the charter party	 also perished with it and there was no scope for arbitration at all and the learned 483 courts below erred in holding that all the contentions raised and allegations made in the suit were arbitrable under the arbitration clause; and that the agreement was void being violative of the conditions of the permission and for that matter the import licence and the provisions of the Import and Export Control Act. Mr. C.S. Vaidyanathan	 the learned counsel for the respondent refuting submits that there having been no mutual mistake so as to invalidate the agreement	 the arbitration clause remains binding and the subject matter of the suit has rightly been held to be arbitrable; that the court rightly exercised jurisdiction on the application under section 34 of the on the basis of the affi davits and at no stage before argument the appellant as respondent No. 1 applied to the court for permission to adduce oral evidence	 and stay of the suit was granted in accordance with law on the basis of the evidence on record; that the agreement as modified was not void on the ground of violation of the permission or of the import licence or of the provisions of the Import & Export Control Act; and that the direction to proceed to arbitration is just and proper and the respondent has no objection to a Retired Supreme Court Judge being appointed arbitrator. The first question to be decided in this appeal	 there fore	 is whether in an application under section 34 of the Indian the court has jurisdiction to decide the validity of the Contract containing the arbitration clause	 and if so	 whether it has to be decided on affida vits or on evidence. To decide the question we may conveniently refer to the provisions of section 34 of the ; Section 34: Power to stay legal proceedings where there is an arbitration agreement. Where any party to an arbitration agreement or any person claiming under him commences any legal proceedings against any other party to the agreement or any person claiming under him in respect of any matter agreed to be referred	 any party to such legal proceedings may	 at any time before filing a written statement or taking any other steps in the proceedings	 apply to the judicial authority before which the proceedings are pending to stay proceed ings; and if satisfied that there is no suffi cient reason why the matter should not be referred in accordance with the arbitration agreement and that the applicant was	 at the time	 when the proceedings were commenced	 and 484 still remains	 ready and willing to do all things necessary to the proper conduct of the arbitration	 such authority may make an order staying the proceedings. This section deals with the staying of a suit where there is an arbitration agreement concerning the subject matter of the suit and between the same parties	 for the Court to have power to exercise the discretion conferred upon it by this section	 there must have been a valid agree ment to submit to arbitration. Where the objection is that the arbitration is a nullity	 it amounts to an objection of want of jurisdiction. The term "arbitration agreement" includes "agreement to refer"	 and "submission" to arbitra tor. A submission forming part of a void contract is itself void and cannot be enforced. Where a firm of bookmakers had engaged in betting transactions with the defendants on the terms that any dispute which might arise should be referred to arbitration	 it was held that the whole contract was void and unenforceable and that the defendants could not be compelled to submit to arbitration: Joe Lee vs Lord Dalneny	 Where there is no valid arbitration agree ment on the subject matter of the suit	 there is no justifi cation for staying a suit for that will deprive the plain tiff of his fight to sue on that subject matter. In Heyman vs Darwins	 	 Lord Macmillan pointed out at Pages 370 371: "If it appears that the dispute is whether there has ever been a binding contract between the parties	 such a dispute cannot be covered by an arbitration clause in the challenged contract. If there has never been a contract at all	 there has never been as part of it an agreement to arbitrate. The greater includes the less. Further	 a claim to set aside a contract on such grounds as fraud	 duress or essential error cannot be the subject matter of a reference under an arbitration clause in the contract sought to be set aside. Again	 an admittedly binding contract containing a general arbitration clause may stipulate that in certain events the contract shall come to an end. If a question arises where the con tract has for any such reason come to an end I can see no reason why the arbitrator should not decide that question. It is clear	 too	 that the parties to a contract may agree to bring it to an end to all intents and purposes and to treat it as if it had never existed. In such a case	 if there be an arbitration clause in the contract	 it perishes with the con 485 tract. If the parties substitute a new con tract for the contract which they have abro gated the arbitration clause in the abrogated contract cannot be invoked for the determina tion of questions under the new agreement. All this is more or less elementary. " Earlier in Monro vs Bognor Urban District Council	 ; where a building contract had been en tered into between the plaintiff and the defendants for a construction of sewerage works contained an arbitration clause which provided that if at any time any question	 dispute or difference should arise between the parties upon or in relation to or in connection with the contract	 the matter should be referred to arbitration and during the progress of the works disputes arose between the parties mainly as to the nature of the site upon which the works had to be carried out	 which the plaintiff alleged was different from that which he had been led to believe by the specifica tions. The plaintiff having brought an action against the defendants claiming	 inter alia	 damages for fraudulent misrepresentation whereby he was induced to enter into the contract	 the defendants took out a summons asking that all proceedings in the action be stayed and the matter be re ferred to arbitration. It was held that the action	 being based on fraud	 referred to matters wholly outside the powers of the arbitrator	 with which he could not possibly deal	 and so could not be said to be a question	 dispute or difference upon or in relation to or in connection with the contract and as such referable to arbitration under the arbitration clause. In Jawaharlal Burman vs Union of India	 [1962] 3 S.C.R. 769 it was held that section 32 of the Act creates a bar against the institution of suits with regard to an arbitra tion agreement or award on any ground whatsoever. Thus if a party affirms the existence of an arbitration agreement or its validity it is not open to the party to file a suit for the purpose of obtaining a declaration about the existence of the said agreement or its validity. The bar to the suit thus created by section 32 of the Act inevitably raises the question as to what remedy is open to a party to adopt in order to obtain an appropriate declaration about the exist ence or validity of an arbitration agreement. 1t was held that having regard to the scheme of sections 31	 32 and 33 of the Act in matters which fail within the bar created by section 32	 if a suit cannot be filed it is not necessarily intended that an application can be made under the Court 's powers provided for by section 31 and impliedly recognised by section 32 of the Act. In the later part of section 33 an application can be made to have the effect or purport of the agreement 486 determined but not its existence. That means that an appli cation to have the effect of the agreement can be made provided the existence of the agreement is not in dispute	 and that a party affirming the existence of an arbitration agreement cannot apply under section 3 for obtaining a decision that the agreement in question exists. In Waverly Jute Mills Co. Ltd. vs Raymon & Co. (India) Pvt. Ltd.	 ; ; the Constitution Bench reiterated the decision in Khardah Co. Ltd. vs Raymon & Co. India Ltd.	 ; where it was held that if a contract is illegal and void	 the arbitration clause which is one of the terms of the contract thereof must also perish along with it and that a dispute relating to the validity of the contract is in such a case for the court and not for the arbitration to decide. Where the arbitration clause is a term of the particular contract whose validity is in question it has no existence apart from the impugned contract and must perish with it. In Renusagar Co. vs General Electric Co.	 ; at page 507 it has been reiterated that though section 34 of the confers a discretion upon the Court in the matter of granting stay of legal proceedings where there is an arbitration agreement	 it cannot be disputed that before granting the stay the Court has to satisfy itself that arbitration agreement exists factually and legally and that the disputes between the parties are in regard to the matters agreed to be referred to arbitration and that decided cases have taken the view that the Court must satisfy itself about these matters before the stay order is issued. In other words	 Court under section 34 must finally decide those issues before granting stay. Among High Court decisions reference may be made to Banwari Lal vs Hindu College	 Delhi	 A.I.R. 1949 East Punjab 165 wherein it has been held at paragraph 33 that the Arbi tration Act has been enacted merely with the object of consolidating the law relating to arbitrations	 and the question of the existence or validity of the contract con taining an arbitration agreement being not a matter falling within the purview of the Act	 it cannot be said	 with any show of reason	 that section 32 takes away the jurisdiction of the courts to give appropriate relief in suit brought either to contest or to establish	 the existence or validity of the contract. In Johurmull Parasram vs Louis Dreyfus Cx. Ltd.	 52 C.W.N. (1947 48) 137; A.I.R. 1949 Cal. 179 it was held at para 14 that the court must consider a suit as it is pleaded and framed. If it comes to a conclusion that a suit as pleaded in a suit on the contract or arising out of the contract containing the arbitration clause 487 then the suit should be stayed. But on the other hand if the suit is pleaded as a suit independent of the contract then the Court has no power to stay the suit although it is satisfied that the frame of the suit is merely a means of avoiding the consequences of alleging the true nature of the claim. In considering the question of stay of the suit the Court is not entitled to go into the question as to what is substantially the nature of the claim. So also in Pramada Prasad vs Sagar Mal Aggarwal	 A.I.R. 1952 Patna 352 it was observed that from the language of the Section 34 it is clear that party can apply to stay a legal proceeding only when the repudiation is of the right or obligation in re spect of any matter agreed to be referred	 and not when the very existence of the agreement is repudiated. The court relied on the decision in Monro vs Bognor Urban District Coun	 In Narsingh Prasad vs Dhanraj Mills	 I.L.R. 21 Patna 544; A.I.R. 1943 Pat 53 Harries	 C.J. held that where an agreement is impeached on the ground of fraud and the dispute is as to the factum or validity of contract	 such a dispute does not fail under the arbitration clause and should be decided by the Court. Similarly in Birla Jute Manufacturing Co. Ltd. vs Dulichand	 AIR 1953 Calcutta 450 it was held at paragraph 15 that a dispute as to the validity of the contract cannot be held to be within an arbitration agreement contained in the contract itself and such a dispute cannot be referred to arbitrators or dealt with by them under such an agreement	 unless the parties agreed to include it in the arbitration clause. Otherwise where the contract itself is repudiated in the sense that its original existence or its binding force is challenged	 for example	 where it is said that the parties were never 'ad idem ' or where it is said that the contract is voidable ad initio on the ground of fraud	 misrepresenta tion or mistake and it has been avoided	 the parties are not bound by any contract and escape the obligation to perform any of its terms	 including the arbitration clause	 unless the provisions of that clause are wide enough to include the question of jurisdiction as well. In W.F. Ducat & Co. Pvt. Ltd. vs Hiralal Pannalal	 A.I.R. 1976 Calcutta 126	 Salil K. Roy Choudhary	 J. held at paragraph 8 that where in a suit the plaintiff alleges that the contract containing the arbitration clause is void and illegal and prima facie it appears that there are sufficient grounds on which the legality of the said contract has been challenged for non compliance of the statutory requirement	 the court should decline to exercise discretion in favour of the stay of the suit. Similarly in General Enterprises vs Jardine Handerson Ltd.	 A.I.R. 1978 Calcutta 407	 Sabyasachi Mukharji	 J.	 as his Lordship then was	 held that if the contract containing the arbitration clause was obtained by fraud the stay of the suit could not be granted under Section 34 of the Act. Thus	 while there is not doubt 488 about the law as enunciated in the above English and Indian decisions	 namely	 where the validity	 existence or legality of the contract is challenged in the suit on grounds de hors	 independent of	 or external to the terms or stipula tions of the contract	 the court in an application under Section 34 of the Act shall have no jurisdiction to go into the question	 and that in large majority of cases it would be applicable	 in appropriate cases	 having regard to the nature of the dispute raised in the pleadings of the suit	 the compass and scope of the arbitration clause in the contract	 the surrounding facts and circumstances of the case having a bearing on the question of genuine grievance falling outside or inside the arbitration agreement and the objects and spirit of the 	 the court may be justified in deciding the validity	 existence or legality of the challenged contract containing the arbitration agree ment. In Heyman vs Darwins	 (supra) Viscount Simon	 L.C. stated thus: "if the dispute is whether the contract which contains the clause has ever been entered into at all that issue cannot go to arbitration under the clause	 for the party who denies that he has ever entered into the contract is thereby denying that he had ever joined in the submission. Similarly	 if one party to the alleged contract is contending that it is void ab initio (Because for example	 the making of such a contract is illegal)	 the arbitration clause cannot operate for on this view the clause itself also is void. But	 in a situa tion where the parties are at one in asserting that they entered into a binding contract	 but a difference has arisen between them whether there has been a breach by one side or the other	 or whether circumstances have arisen which have discharged one or both parties from further performance	 such differences should be regarded as difference which have arisen 'in respect of ' or 'with regard to ' or 'under ' the contract	 and an arbitration clause which uses these	 or similar	 expressions should be construed accordingly. " Section 34 of the 	 deals with the staying of a suit where reference concerning the subject matter of the suit and between the same parties is pending. This section corresponds to Section 4 of the English . Whether a particular dispute arising out of a particular contract is referable to arbitration or not must necessarily depend on the intention of the parties as embodied in the arbitration clause. If the dispute is squarely covered by the arbitration clause the 489 relevant provisions of the Act will be attracted. Section 32 puts a bar to suits contesting arbitration agreement or award by providing that notwithstanding any law for the time being in force	 no suit shall lie on any ground whatsoever for a decision upon the existence	 effect or validity of an arbitration agreement or award	 nor shall any arbitration agreement or award be enforced	 set aside	 amended modified or in any way affected or otherwise than as provided in the Act. Section 33 of the Act provides that any party to an arbitration or any person claiming under him desiring to challenge the existence or validity of an arbitration agree ment or an award to have the effect of either determined shall apply to the Court and the Court shall decide the question on affidavits: Provided that where the Court deems it just and expedient it may set down the application for hearing on other evidence also	 and it may pass such orders for discovery and particulars as it may do in a suit. It may be noted that section 32	 33 and 34 speak of an arbitration agreement as defied in section 2(a) of the Act which means a written agreement to submit present or future differences to arbitration	 whether an arbitrator is named therein or not. In the instant case the arbitration clause forms a part of the agreement	 namely	 the charter party. The question is whether the validity or otherwise of the charter party itself can be said to have been covered within the arbitration clause. On scrutiny of clause 18 we find that any dispute or difference in respect of the construc tion	 meaning or effect or as to the rights and liabilities of the parties thereunder or any other matter arising out of this agreement shall be referred to arbitration. Can the validity of the contract itself as embodied in the charter party be said to have arisen out of the contract or can the validity or otherwise of the contract in the charter party itself be said to be construction	 meaning or effect or rights and liabilities of the party thereunder? In our opinion	 the answer is in the negative. The arbitration agreement is not the same as the contract in the charter party. It cannot	 therefore	 be said that the validity or otherwise of the chartery party was covered by clause 18. In Khardah Company Ltd. vs Raymon & Co. (India) Pvt. Ltd.	 ; the appellant company entered into a contract on September 7	 1955 for the purchase of certain goods and clause 14 thereto provided that all disputes arising out of or concerning the contract should be referred to the arbitration of the Bengal Chamber of Commerce. The respondents having failed to deliver the goods as agreed the appellants applied to the Bengal Chamber of Commerce for arbitration and an award made in favour of the appellant. Thereupon the respondent filed an application in the High Court of Calcutta under 490 section 33 of the challenging the validity of the award on the ground that the contract dated September 7	 1955 itself was illegal as it was in contraven tion of the notification of the Central Government dated October 29	 1953. It was held that the dispute as to the validity of the contract dated September 7	 1955	 was not one which the arbitrators were competent to decide under clause 14 and that in consequences the respondents were entitled to maintain the application under section 33 of the Act and that where an agreement is invalid every part of it including clause as to arbitration contained therein must also be invalid. In Anderson Wright Ltd. vs Moran and Compa ny	 [1955] 1 S.C.R. 862 it has been laid down that in order that a stay may be granted under section 34 of the Act	 it is necessary	 among others	 that the legal proceeding which is sought to be stayed must be in respect of a matter agreed to be referred and the Court must be satisfied that there is no sufficient reason why the matter should not be referred to an arbitrator in accordance with the arbitration agree ment. The question whether the dispute in the suit falls within the arbitration clause really pre supposes that there is such agreement and involves consideration of two matters	 i.e. (i) what is the dispute in the suit and (ii) what dispute the arbitration clause covers. It is incumbent upon the Court to decide whether there is a binding contract for arbitration between the parties. If it is found that the dispute in the suit is not covered by the arbitration clause the application for stay may be dismissed. In Damodar Valley Corporation vs K.K. Kar; 	 it has been held that as the contract is an outcome of the agreement between the parties it is equally open to the parties thereto and to Court to bring to an end or to treat it as if it never existed. It may also be open to the parties to terminate previous contract and substitute in the place a new contract or alter the original contract in such a way that it cannot subsist. In all these cases since the entire contract is put to an end to	 the arbitration clause	 which is a part of it	 also perishes along with it. Where	 therefore	 the dispute between the parties is that the contract itself does not subsist either as a result of its being substituted by a new contract or by rescission on alteration	 that dispute cannot be referred to the arbitration as the arbitration clause itself would perish if the averment was found to be valid. As the very jurisdiction of the arbitrator is dependent upon the existence of the arbitration clause under which he is appointed	 the parties have no right to invoke a clause which perished with the contract. In case of rescission it would put an end to the rights of the parties to the con tract in future but it may permit claiming of damages either for previous breaches or for the breach which constitute the termination. The contract being consensual	 the question whether the 491 arbitration clause survives or perishes would depend on the nature of the controversy and its effect upon the existence of survival of the contract itself. A dispute as to the binding nature of the contract cannot be determined by resort to arbitration because the arbitration clause itself stands or falls according to the determination of the ques tion in dispute. As was held in Hirji Mulji vs Cheong Yue Steamship Co.	 	 "a contract that has deter mined is in the same position as one that has never been concluded at all". In Heyman vs Darwins	 (supra) Lord Porter pointed out "that it is not in every instance in which it is claimed that the arbitrator has no jurisdiction the Court	 will refuse to stay an action. If this were the case such a claim would always defeat an agreement to submit disputes to arbitration	 at any rate	 until the question of jurisdiction had been decided. The Court to which an application for stay is made is put in possession of the facts and arguments and must in such a case make up its mind whether the arbitrator has jurisdiction or not as best it can on the evidence before it. Indeed	 the application for stay gives an oppor tunity for putting these and other considerations before the court that it may determine whether the action shall be stayed or not. " These observations were accepted by S.R. Das	 J in the case of Khusiram vs Hanutmal	 [1948] 53 C.W.N. 505	518 wherein it was held that where on an application made under section 34 of the for stay of a suit	 an issue is raised as to the formation	 existence or validity of the contract containing the arbitration clause	 the Court is not bound to refuse a stay but may in its discretion	 on the application for stay	 decide the issue as to the existence or validity of the arbitration agreement even though it may involve incidentally a decision as to the validity or existence of the present contract (Emphasis supplied). Their Lordships in Anderson Wright Ltd. vs Moran and Company	 (supra) reiterating the above passage observed: "We are in entire agreement with the view enunciated above." Thus	 where in an application under section 34 of the Act an issue is raised as to the validity or existence of the contract containing the arbitration clause	 the court has to decide first of all whether there is a binding arbitration agreement	 even though it may involve incidentally a deci sion as to the validity or existence of the parent contract. The court has to bear in mind that a contract is an agree ment enforcible at law and that it is for the parties to make their own contract and not for the court to make one for them. Court is only to interpret the contract. The stipulations in the contract have	 therefore	 to be examined in the light of the dispute raised in the pleadings of the suit. If it is found that the dispute raised in the suit outside or independent of the contract it follows that the arbitration clause will not encompass that dispute. However	 as the parties were 492 free to make their own contract they were also free to have agreed as to what matters would be referred to arbitration. If the arbitration clause is so wide as to have included the very validity or otherwise of the contract on the grounds of fraud	 misrepresentations	 mutual mistake or any valid reason the arbitrator will surely have jurisdiction to decide even that dispute. Two extreme cases have to be avoided	 namely	 if simply because there is an arbitration clause all suits including one questioning the validity or existence or binding nature of the parent contract is to be referred to arbitrator irrespective of whether the arbitra tion clause covered it or not	 then in all cases of con tracts containing arbitration clause the parties shall be deprived of the right of a civil suit. On the other hand if despite the arbitration clause having included or covered ex facie even a dispute as to the existence	 validity or bind ing nature of the parent contract	 to allow the suit to proceed and to deprive the arbitrator of his jurisdiction to decide the question will go contrary to the policy and objects of the as embodied in Sections 32	 33 and 34 of the Act. Both the extremes have	 therefore	 to be avoided. The proper approach would be to examine the issues raised in the suit and to ascertain whether it squarely fails within the compass of the arbitration clause and take a decision before granting the stay of the suit. If an issue is raised as to the formation existence or validity of the contract containing the arbitration clause	 the court has to exercise discretion to decide or not to decide the issue of validity or otherwise of the arbitration agreement even though it may involve incidentally a decision as to validity or existence of the challenged contract. Should the court find the present contract to be void ab initio or illegal or non existent	 it will be without jurisdiction to grant stay. If the challenged contract is found to be valid and binding and the dispute raised in the suit covered by the arbitration clause	 stay of the suit may be justified. In the instant case considering the issues raised	 the arbitration clause and surrounding circumstances and the part played by the parties pursuant to the charter party since execution to the modification and thereafter till objection raised by the appellant plaintiff	 we are of the view that the learned trial court did not err in proceeding to decide the issue of validity or legality of the parent contract. The question whether the validity and legality of the parent contract could be decided without taking oral evi dence need not detain us long. All the relevant documents and affidavits were before the court and were considered. Mr. Shanti Bhushan submits that in deep sea fishing	 use of trawlers	 requirement and standard of refrigeration system in the trawlers so as to maintain 20F temperature in their fish 493 holds are highly technical matters and given the opportunity the appellant plaintiff could have produced expert evidence in the matter. Counsel	 however	 states	 that at no stage of the proceedings before argument any written or even oral application was made seeking permission to adduce oral evidence. Admittedly	 it was only during agreement that oral prayer was made. We are	 therefore	 of the view that no illegality was committed by the trial court in this regard considering the facts and circumstances of the case. The learned judge rightly observed that if there was any doubt about facts	 the matter had to be decided by trial on evi dence	 in this case the admitted facts could not be disput ed. The learned courts have also exercised discretion to grant stay. Even if it appears that the discretion could have also been exercised to decide the issue of invalidity in a trial on evidence adduced	 this court would not substi tute its view for that of the trial court	 unless the ends of justice required it to be done. Since it was said by the Court of Appeal in Ormerod vs Todmordon	 that while it had jurisdiction to review the descreation of the judge it would not do so except in a case in which it clearly though that the judge had wrongly exercised his discretion and that an injustice had thereby been done by his order. This was approved in Charles Osenton & Co. vs Johnston	 holding that a legitimate exercise of the jurisdiction would not be disturbed in appeal but a wrongful exercise of the discretion will be corrected by the House of Lords. Referring to Gardner vs Jay	 [1885] 29 Ch. D. it was ruled in the Printers (Mysore) Pvt. Ltd. vs Pothan Joseph	 ; that this court would not light ly interfere under Article 136 of the Constitution with the concurrent exercise of discretion of the Courts below under Section 34 of the Act. Before it can justly do so	 the appellant must satisfy the court	 on the relevant facts referred by the courts below	 that they exercised their discretion in a manifestly unreasonable or perverse way	 which was likely to defeat the ends of justice. The appel lant has failed to do so in this case. The next question is whether the learned courts below were correct in holding that there was no mutual mistake so as to render the agreement void ab initio under section 20 of the Contract Act. Section 20 of the provides that where both the parties to an agreement are under a mistake as to a matter of fact essential to the agreement	 the agreement is void. The explanation to the section says that an erroneous opinion as to the value of the thing which forms subject matter of the agreement is not to be deemed a mistake as to a matter of fact. Where the parties make mutual mis 494 take misunderstanding each other and are at cross purposes	 there is no real correspondence of offer and acceptance and the parties are not really consensus ad idem. There is thus no agreement at all; and the contract is also void. A common mistake is there where both parties are mistaken about the same vital fact although both parties are ad idem	 e.g. the subject matter of the contract has already perished. The contract in such a case is void as the illustrations to the section make clear. In U.P. Government vs Nanhoo Mal	 A.I.R. 1960 Allahabad 420 it has been observed that section 20 is concerned with common mistake of fact and not mutual mis take. A common mistake is made or shared alike by both while mutual means made or entertained by each of the persons towards or with regard to each other. In Cooper vs Phibbs	 ; 	 A agreed to take a lease of a fish ery from B	 though contrary to the belief of both parties at the time	 A was tenant for life of the fishery and B had no title at all. Lord Westbury applied the principle that if parties contract under a mutual mistake and misapprehension as to their relative and respective rights	 the result is that the agreement is liable to be set aside as having proceeded upon a common mistake. The transfer of ownership being impossible	 the stipulation was naturali ratione inunitilis. This principle of Cooper vs Phibbs has been followed in Earl Beauchamp vs Winn and Hudders field Banking Co. vs Henry Lister & Sons	 [1895] 2 Ch. 273. However	 Lord Atkin in Bell vs Lever Bros Ltd.	 ; ; 	 27 followed in Kennedy vs Panama Royal Mail Co.	 and Smith vs Hughes	 described the state ment of Westbury too wide and said that the correct view was that there was a contract which the vender was either inca pable of performing or had committed breach of a stipulation as to title; the contract was unenforceable but not void. In Bell vs Lever Bros Ltd.	 (supra) an agreement of service between the company and two of the directors of its subsidi ary company was terminated on payment of compensation. The parties proceeded on the assumption that the service agree ment was not liable to immediate termination by reason of misconduct of the directors which assumption proved to be mistaken. Fraud was however negatived. In an action by the company for recession of contract and repayment of moneys paid the agreement was set aside on the ground of mutual mistake as to the quality of the service contract. The accepted proposition was that whenever it is to be inferred from the terms of the contract or its surrounding circum stances that the consensus has been reached upon the basis of a particular contractual assumption	 and that assumption is not true	 the contract is avoided; i.e. it is void ab initio if the assumption is of present fact and it ceases to bind if the assumption is of future 495 fact. The assumption must have been fundamental to the continued validity of the contract or a foundation essential to its existence. Lord Atkin observed that the common stand ard for mutual mistake and implied conditions as to the existing or as to future fact is: Does the state of new facts destroy the identity of the subject matter as it was in the original state of facts? In the words of Lord Than kerton the error must be such that it either appeared on the face of the contract that the matter as to which the mistake existed was an essential and integral element of the sub ject matter of the contract or was an inevitable inference from the nature of the contract that all parties so regarded it. Where each party is mistaken as to the other 's inten tion	 though neither realises that the respective promises have been misunderstood	 there is mutual mistake. The illus tration in Cheshire and Fifoots Law of Contract is	 if B were to offer to sell his Ford Comina Car to A and A were to accept in the belief that the offer related to a Ford Zeph yr. In such a case	 no doubt	 if the minds of the parties could be probed	 genuine consent would be found wanting. But the question is not what the parties had in their minds	 but what reasonable third parties would infer from their words or conduct. The court has to ascertain "the sense of the promises". In other words	 it decides whether a sensible third party would take the agreement to mean what A under stood it to mean or what B understood it to mean	 or whether indeed any meaning can be attributed to it at all. Blackman J in Smith vs Hughes	 	607 said "if whatever a man 's real intention may be he so conducts him self what a reasonable man would believe that he was assent ing to the terms proposed by the other party	 and that other party upon that belief enters into the contract with him	 the man thus conducting himself would be equally bound as if he had intended to agree the other party 's terms". This case establishes that a contract is void at law only if some term can be implied in both offer and accept ance which prevents the contract from coming into operation. In Solle vs Butcher	 (691) Lord Denning said that once a contract has been made	 that is to say	 once the parties	 whatever their in most states of mind	 have to all outward appearances agreed with sufficient certainty in the same terms on the subject matter	 then the contract is good unless and until it is set aside for fail ure of some condition on which the existence of the contract depends	 or for fraud	 or on some equitable ground. Neither party can rely upon his own mistake to say that it was a nullity from the beginning	 no matter that it was a mistake which to his mind was fundamental	 and no matter that the other party knew that he was under a mistake. A fortiori	 if the other party did not know of the 496 mistake but shared it. There is no doubt that the applica tion of the doctrine of mutual mistake depends upon the true construction of the contract made between the parties. A mutual misunderstanding will not nullify a contract but only if terms of the contract construed in the light of the nature of the contract and of the circumstances believed to exist at the time it was done show that it was never intend ed to apply to the situation which in reality existed at that time	 will the contract be held void. Mistake as to the quality of the article contracted for may not always avoid the contract. As Lord Atkin said in Bell vs Lever Bros Ltd. (supra) mistake as to the quality of the thing contracted for raises more difficult questions. In such a case a mis take will not affect assent unless it is the mistake of both parties	 and is as to the existence of some quality which makes the thing without the quality essentially different from the thing as it was believed to be. A distinction has	 therefore	 to be made between a mistake as to substance or essence on the one hand	 and a mistake as to quality or attributes on the other. A mistake of the former type	 will avoid the contract whereas a mistake of the latter type will not. Such a distinction was made in Kennedy vs Panama	 Royal Mail Co. Ltd.	 (supra). It may be said that if there be misapprehension as to the substance of the thing there is no contract; but if it be a difference in some quality or accident	 even though the misapprehension may have been the actuating motive to the purchaser	 yet the contract remains binding. Thus a mistake as to an essential and integral element in the subject matter of the contract will avoid the contract. A mistake will not affect assent unless it is the mistake of both parties	 and is as to the existence of some quality which makes the thing without the quality essential ly different from the thing as it was believed to be. A distinction	 therefore	 should be drawn between a mistake as to the substance of the thing contracted for	 which will avoid the contract and mistake as to its quality which will be without effect. According to circumstances even a mistake as to the substance of the thing contracted for may not necessarily render a contract void as was observed in Solle vs Butcher (supra). Similarly in Frederick E. Rose (London) Ltd. vs William H. Pim Junior & Co. Ltd.	 where both parties entered into a contract for the sale of horse beans	 which were quite different from the feveroles which they each believed them to be	 yet the contract was held not to be void. Thus there must be a difference so complete that	 if the contract were enforced in the actual circumstances which have unexpectedly emerged	 this would involve an obligation fundamentally different from that which the parties believed they were undertaking. In Sheikh. Brothers Ltd. vs Arnold	 ; Belly. Lever Bros (supra) was applied. 497 Applying the above principles of law to the facts of the instant case	 we find that the two fishing trawlers Ave Maria I and Ave Mariall were imported by the respondent on 30.1.1974 and were operated by him based at Vishakapatnam. At the time of negotiations survey report relating to the trawlers dated 20.2. 1977 of ABS Worldwide & Technical Services India Pvt. Ltd. was handed over by the respondent to the appellant and thereafter the agreement was executed on 21.3.1977. Delivery of the trawlers was to be made seven days after receipt of the approval or no objection certifi cate for carrying out inspection to ascertain repairs to be carried out for making the trawlers fully operational and to ascertain the cost of such repairs. On 10.7. 1977 trawlers were delivered to the charterer for inspection and repairs. On 12.11.1977 the charterer wrote to the owner asking for payment of hire charges from 1.10.1977 and pointing out delays in repairs. The owner also requested the charterer to pay port charges with effect from 1.10.1977. On 2.2.1978 the charter party was modified to the extent that charter hire would commence from 15.1.1978 and that as the charterer had incurred substantial charges on repairs the owner shall bear only Rs. 1.5 lakhs per trawler for repairs carried out up to the commencement of the charter hire. The charter hire was revised to Rs.6	25	000 per trawler per year and an amount of Rs.6	70	000 paid towards deposit and charter hire from 15.1.1978 to May 1978. In the first week of March	 1978 the charterer paid Rs. 1	04	000 towards charter hire for June 1978. On 18.7.1978 the charterer wrote to the owner setting out payments made and claiming adjustment of Rs.90	000 towards repair charges and transferring Rs.14	000 towards charter hire. It was only on 14.9.1978 that the charterer for the first time raised some complaints and objections on the trawlers and questioned the very validity of the agree ment. On 14.9. 1978 the trawlers were inspected by Kamath & D 'Abrie Marine Surveyors who submitted their report on 26.9. 1978 and the suit was filed on 29.9. The appellant plaintiff 's averment	 as we have already mentioned	 is that the trawlers suffered from inherent and latent defects in the refrigeration system which was an essential part of such trawlers and which were not discover able by ordinary diligence at the time of entering into the agreement on 21st March 1977 and as such they were not fully operational. It is not their grievance that there was no refrigeration system at all in the trawlers but that only it was not of a particular standard	 namely that even after extensive repairs it could not be brought to the standard of minus 20 degree F but attained only minus 10 degree F. The learned counsel for the appellant submits that 498 for deep sea fishing the temperature in the trawler 's fish hold has to be minus 20 degree F and minus 10 degree F would not be adequate and as a result the trawlers cannot be used for deep sea fishing. The grievance has been made that no opportunity to lead expert evidence on this question was available to the appellant. The question	 therefore	 arises under the facts and circumstances of the case	 namely	 whether the deficiency in the refrigeration systems to the extent of minus 10 degree F made the trawlers essentially different from trawlers with a refrigeration system of minus 20 degree F. The other question is whether this standard of the refrigeration system was in the minds of the parties at the time of entering into the contract and there was a mutual mistake regarding this	 and the contracting minds were	 therefore	 not ad idem. From the series of steps taken for repairs and the stipulations in the charter party in cluding the modifications thereof we are unable to hold that it was a case of mutual mistake as to a quality which made the trawlers transferred essentially different from the trawlers that the parties in their minds agreed to transfer. This being the position we have to agree with the learned courts below that there was no mutual mistake and the con tract would not be avoided on this ground. The next question is that of illegality or otherwise of the agreement. The learned trial court exercised its discre tion to go into the question and arrived at the finding that there was no illegality on the ground of violation of the permission or the condition of licence granted by the Chief Controller of Exports and Imports. The learned lower appel late court upheld that finding. It is settled law that where the subject matter of a reference is illegal no award can be of any binding effect. In Taylor vs Barnett	 [1953] W.L.R. 562; the plaintiff had agreed to purchase goods from the defendants. The defendants had agreed to deliver. The goods were subject to the price control	 sales at price in excess of the control price being forbidden by regulations at the time of making the contract (though not at the time of the delivery). The control price was less than the agreed price. The umpire awarded the plaintiffs damages and the award was good on the face of it	 but it was held that the award should be set aside for illegality. If the contract itself was illegal	 the controversy as to whether it was illegal or not would not be a dispute arising out of the contract as also would be the question whether the contract was void ab initio. When	 however	 it is found that a binding contract was made which was not illegal what follows from such a contract would be covered by the expression "dispute arising out of the contract". To stay a suit under section 34 of the Act the Court has to see	 inter alia	 whether there was a valid agreement to have the dispute concerned settled by arbitration and that the 499 proceedings are in respect of a dispute so agreed to be referred. In Taylor vs Barnett	 (supra) Singleton J; ex pressed the opinion that an arbitrator is guilty of miscon duct if he knows or recognises that a contract is illegal and thereafter proceeds to make award upon dispute arising under that contract. The illegality of a contract can be an issue in deciding want of jurisdiction. The first and essen tial pre requisite to making an order of stay under section 34 of the Act	 as was ruled in Anderson Wright Ltd. (supra) is that there is a binding arbitration agreement between the parties to the suit which is sought to be stayed. Public policy imposes certain limitations on the freedom of con tract by forbidding the making of certain contracts. In such cases though all other requisites for formation of the contract are complied with	 parties to such forbidden con tracts are not allowed to enforce any rights under them. In clear cases the law strikes at the agreement itself by making the contract illegal. However	 the effect and nature of illegality will depend upon on the facts and circum stances of each case. Thus	 the effects of illegality are by no means uniform. In other words	 the effect of illegality is not the same in all cases. Where a statute makes a con tract illegal or where a certain type of contract is ex pressly prohibited there can be no doubt that such a con tract will not be enforcible. In Rearbitration between Mahmoud and Isphani	 by a war time statu tory order it was forbidden to buy or sell linseed oil without a licence from the Food Controller. The plaintiff had a licence to sell to other licenced dealers. He agreed to sell and deliver to the defendant a quantity of linseed oil	 and before the contract was made	 asked the defendant whether he possessed a licence	 the defendant falsely as sured him that he did. Subsequently; however	 the defendant refused to accept the oil on the ground that he had no licence. The plaintiff having brought an action for damages for nonacceptance	 the Court of Appeal refused to entertain the action even if the plaintiff was ignorant	 at the time the contract was made	 of the facts which brought it within the statutory prohibition observing that it was a clear and unequivocal declaration by the legislature in the public interest that this particular kind of contract shall not be entered into. A contract which was not illegal from the beginning may be rendered illegal later by the method of performance which did not comply with the statutory require ments. The appellant 's burden was to show that the charter party was illegal to take it out of the arbitration clause for if the contract is illegal and not binding on the par ties the arbitration clause would also be not binding. Once it is shown to have been illegal it would be unenforcible as ex turpi causa non oritur actio. Again it is a settled principle that one who knowingly enters into a contract with improper object cannot enforce his rights thereunder. The learned 500 counsel for the appellant submitted that the import of trawlers was subject to the conditions of the import li cence	 and one of the conditions was that the goods imported under it will be utilised in the licence holder 's factories and that no portion thereof will be sold or will be permit ted to be utilised by any other party or placed with any financier other than the banks authorised to deal in the foreign exchange and State Financial Corporation	 provided that particulars of goods to be pledged are reported by the licence to the licencing authorities. We are of the view that this was a proforma condition in the licence No. P/CC/206299 dated3.3.1971 and could not appropriately be applied to the two imported trawlers. Needless to observe that the appellant plaintiff was also a party to the agree ment of charter party in respect of the two imported trawl ers. We are also of the view that though it purported to be actual user 's licence there was no violation of this condi tion in view of the express permission granted by the Con troller vide his Memo No. GG.IV/28/143/70/71/374 dated 17.8.1977 with specific reference to the licence No. P/CC/2062299 dated 3.3.1971 allowing the chartering of the two imported trawlers to be delivered to plaintiff M/s. I.T.C. India Ltd. We also agree with the learned courts below that the modifications dated 2.2.1978 did not make any alteration so as to make the agreement contrary to the terms and conditions of the permission inasmuch as the permission was for a period of three years. The option to continue hire of the trawler for a further period of three years did not ipso facto violate the permission. There was also no viola tion as to the duration of the charter party. The next question is whether the dispute under the charter party raised in the suit are arbitrable. The divi sion bench held that the learned Single Judge was right in so far as he held that the matters were arbitrable apart from the question of illegality	 invalidity of the contract. We agree with this view inasmuch as it is obvious that the question of invalidity of the contract due to the alleged mutual mistake would be de hors and independent of the contract and as such would not be referable under the arbi tration clause	 In so far as the question of illegality of the charter party is concerned as the appellant plaintiff has not established that the charter party was illegal or void ab initio the question whether the modification as alleged had rendered the contract illegal would be covered by arbitration clause which reads: "Any dispute or difference at any time arising between the parties hereto in respect of the construction meaning or effect or as to the rights and liabilities of the parties afore said hereunder or any other matter arising out of this 501 agreement	 shall be referred to arbitration in accordance with the subject to the provision of the Indian or any statutory modification or re enactment thereto or thereof for the time being in force and the venue of Arbitration shall be Madras or Cal cutta	 and not elsewhere and the Award or Awards in such arbitration shall be made a rule of court of competent jurisdiction at the instance of either party". We agree that under the above clause the reliefs claimed in the suit other than the question of ab initio invalidity or illegality of the contract would be referable. However	 it will be within the jurisdiction of the arbitrator to decide the scope of his jurisdiction as we have said earlier that the court cannot make a contract between the parties and its power ends with interpretation of the contract between them. The same principle also applies to the arbi tration agreement unless of course	 the parties to the arbitration agreement authorises the court to make and modify the agreement for themselves. Mr. C.S. Vaidyanathan for the respondents states that the respondent shall have no objection to a retired Judge of the Supreme Court being appointed as Arbitrator and the respondents shall not raise the question of limitation as indicated by Mr. Shanti Bhushan learned counsel for the appellant. We have no doubt that the Arbitrator so appointed shall proceed in accordance with law to decide the questions including that of the jurisdiction	 if raised. In the result	 we find no merit in this appeal and hence it is dismissed leaving the parties to bear their own costs. T.N.A. Appeal dis missed.

Under an import licence dated 3rd March	 1971 issued by the Chief Controller of Imports and Exports the respondent imported two fishing trawlers with the financial assistance of the second respondent Canara Bank. The respondent con ducted negotiations with the appellant for a charter party agreement in respect of the said trawlers. On 21st March	 1977	 an agreement between the parties was executed 470 under which the appellant agreed to take on charter hire the said two trawlers for the purpose of deep sea fishing for a period of two years with an option to continue the hire for a further period of three years. Under the terms of the agreement the respondent was to deliver the said trawlers to the appellant at Vishakhapatnam within seven days of the receipt of approval from the Chief Controller of Imports and Exports or no objection certificate from the Canara Bank	 for making the said trawlers fully operational and to ascer tain the cost of such repairs. The appellant charterer was then to conduct fishing trials to ascertain actual condi tions and thereafter the charter hiring was to commence from the date the fishing trials were ended. On 18th August	 1977	 the Chief Controller of Imports and Exports granted permission to the respondent to charter the said trawlers to the appellant on the conditions that the charter rent would be Rs.50	000 per month per trawler and that the charter would be for a period of three years. On 30th September	 1977	 the respondent delivered the said two trawlers for repairs to the appellant. On 2nd February	 1978	 the parties modified the agree ment revising the rate of charter hire and the date of commencement of hire	 to the extent that the charter hire would commence from 15th January	 1978 and the revised rate of hire would be Rs.6	25	000 per trawler per year. The appellant charterer raised objections alleging that the trawlers suffered from inherent and latent defects in the refrigeration system which was an essential part of such trawlers and as such the trawlers were not fully operational because even after carrying out extensive repairs the re frigeration system could not be brought to the required standard of minus 20 degree F but attained only minus 10 degree F. On 29.9.1978	 the appellant instituted a suit in the original side of the Calcutta High Court claiming (i) a decree for a sum of Rs.39	64	341 towards cost	 charges	 damages and compensation incurred on the said trawlers and	 (ii) a declaration that the agreement was contrary to the terms of the permission granted by the Chief Controller of Imports and Exports and consequently illegal and against public policy and void; (iii) that the Parties had entered into the agreement on the basic fundamental assumption that by effecting necessary repairs the trawlers would be made fully operational but the assumption was subsequently dis covered to be mistaken because of the deficiency in the refrigeration system and it rendered the agreement void. 471 The respondent filed an application under Section 34 of the praying that the suit instituted by the appellant	 and all proceedings therein be stayed because the disputes were wholly covered by the arbitration clause as contained in the modified agreement dated 2nd February	 1978 which was binding between the parties. The Single Judge held that there was no invalidity for non compliance of the conditions of the licence granted because necessary permission was obtained in respect of the agreement from the Chief Controller of Imports and Exports and the modifications of the agreement did not impair its validity; though in a particular case if there was any doubt about facts	 the matter had to be decided by trial on evi dence but in the instant case	 having regard to the admitted facts and conduct of the parties it was not necessary to set down the matter for trial on evidence; there was no illegal ity or mutual mistake; that the alleged fundamental breach was wholly covered by the arbitration clause; that the arbitration clause was valid and binding between the par ties; and that all the conditions of Section 34 were satis fied. Accordingly	 the Single Judge granted stay of the suit and directed the parties to take immediate steps for initia tion of reference under the arbitration agreement. The judgment and order of the Single Judge was confirmed by the Division Bench by dismissing the appeal. In this appeal by special leave it was contended on behalf of the appellants that (i) the subject matter of the suit	 namely	 the question whether the agreement was void ab initio for mutual mistake was not arbitrable; and the courts below erred in holding so; (ii) assuming that the subject matter was arbitrable	 the court should not have exercised its jurisdiction on the application under Section 34 because it involved complicated questions of fact and in exercising such jurisdiction the courts acted without jurisdiction; (iii) the court should have decided only after taking oral and documentary evidence and not merely on affidavits; (iv) the agreement was void being violative of the conditions of the permission granted by the Chief Controller of Imports and Exports; (v) the agreement itself having been void ab initio due to mutual mistake	 the arbitration clause per ished with it and the courts below erred in holding that the disputes were arbitrable. Dismissing the appeal	 the Court	 HELD: 1. Section 34 deals with the staying of a suit where there 472 is an arbitration agreement concerning the subject matter of the suit and between the same parties. For the Court to have power to exercise the discretion conferred upon it by this section	 there must have been a valid agreement to submit to arbitration. Where the objection is that the arbitration is a nullity	 it amounts to an objection of want of jurisdic tion. The term "arbitration agreement" includes "agreement to refer"	 and "submission" to Arbitrator. A submission forming part of a void contract is itself void and cannot be enforced. [484B C] 1.1 Whether a particular dispute arising out of a par ticular contract is referable to arbitration or not	 must necessarily depend on the intention of the parties as em bodied in the arbitration clause. If the dispute is squarely covered by the arbitration clause	 the relevant provisions of the Act will be attracted. The question whether the dispute in the suit fails within the arbitration clause really pre supposes that there is such agreement and in volves consideration of two matters	 that is (i) what is the dispute in the suit	 and (ii) what dispute the arbitration clause covers. It is incumbent upon the court to decide whether there is a binding contract for arbitration between the parties. If it is found that the dispute in the suit is not covered by the arbitration clause the application for stay may be dismissed. [488H; 489A] 2. Where in an application under Section 34 of the Act an issue is raised as to the validity or existence of the contract containing the arbitration clause	 the court has to decide first of all whether there is a binding arbitration agreement	 even though it may involve incidentally a deci sion as to the validity or existence of the parent contract. If the arbitration clause is so wide as to have included the very validity or otherwise of the contract on the grounds of fraud	 mis representations	 mutual mistake or any valid reason the arbitrator will surely have jurisdiction to decide even that dispute. The proper approach would be to examine the issue raised in the suit and to ascertain wheth er it squarely falls within the compass of the arbitration clause and take a decision before granting the stay of the suit. If an issue is raised as to the formation	 existence or validity of the contract containing the arbitration clause	 the court has to exercise discretion to decide or not to decide the issue of validity or otherwise of the arbitration agreement even though it may involve incidental ly a decision as to validity or existence of the challenged contract. Should the Court find the parent contract to be void ab initio or illegal or non existent	 it will be with out jurisdiction to grant stay. If the challenged contract is found to be valid and binding and the dispute raised in the suit covered by the arbitration clause	 stay of the suit may be justified. [491F G; 492A B	 D F] 473 2.1 In the instant case	 considering the issues raised	 the arbitration clause and the surrounding circumstances and the part played by the parties pursuant to the charter party since execution to the modification and thereafter till objection raised by the appellant plaintiff. it must be held that the trial court did not err in proceeding to decide the issue of validity or legality of the parent contract. [492F G] 3. Where the validity	 existence or legality of the contract is challenged in suit on grounds de hors	 independ ent of	 or external to the terms or stipulations of the contract	 the court in an application under Section 34 of the Act shall have no jurisdiction to go into the question	 and that in a large majority of cases it would be applica ble	 in appropriate cases	 having regard to the nature of the dispute raised in the pleadings of the suit	 the compass and scope of the arbitration clause in the contract	 the surrounding facts and circumstances of the case having a bearing on the question of genuine grievance failing outside or inside the arbitration agreement and the objects and spirit of the 	 the Court may be justified in deciding the validity	 existence or legality of the chal lenged contract containing the arbitration agreement. [488A C] 3.1 In the instant case	 the arbitration clause formed part of the agreement. The arbitration agreement is not the same as the contract in the charter party. It cannot	 there fore	 be said that the validity or otherwise of the charter party was covered by the arbitration clause. [489D E] Jee Lae vs Lord Dalmeny	 ; Heyman vs Darwins	 ; Monro vs Bognor Urban District Council	 ; Jawaharlal Burman vs Union of India	 ; Waverly Jute Mills Co. Ltd. vs Raymon & Co. (India) Pvt. Ltd.; 	3 S.C.R. 209; ; Khardah Co. Ltd. vs Raymon & Co. India Ltd.	 ; ; Renusagar Co. vs General Electric Co.	 ; ; Anderson Wright Ltd. vs Moran and Company	 [1955] 1 S.C.R. 862; Damodar Valley Corporation vs K.K. Kar; 	 ; Hirji Mulji vs Cheong Yue Steamship Co.	 ; applied. Banwari Lal vs Hindu College	 A.I.R. 1949 East Punjab 165; Johurmull Parasram vs Louis Dreyfus Co. Ltd. 52 C.W.N. (1947 48) 137 A.I.R. 1949 Cal 179; Pramada Prasad vs Sagar Mal Aggarwal	 A.I.R. 1952 Patna 352; Narsingh Prasad vs Dhanraj Mills. I.L.R. 21 Patna 544; A.I.R. 1943 Patna 53; Birla Jute Manufacturing Co. Ltd. vs Dulichand. A.I.R. 1953 Calcutta 450; W.F. Ducat & Co. Pvt. Ltd. vs 474 Hiralal Pannalal	 A.I.R. 1976 Calcutta 126; General Enter prises vs Jardine Handerson Ltd.	 A.I.R. 1978 Calcutta 407; Khusiram vs Hanutmal	 	 approved. In the instant case	 facts were admitted. [493B C] All the relevant documents and affidavits were before the Court and were considered by it. Therefore no illegality was committed by the trial court in not setting down the matter for trial on evidence and deciding the validity and legality of the matter without taking oral evidence. [49211; 493B] 4.1 Even if it appears that the discretion could have also been exercised to decide the issue of invalidity in a trial on evidence adduced	 this court would not substitute its view for that of the trial court	 unless the ends of justice required it to be done. This Court would not lightly interfere under Article 136 of the Constitution with the concurrent exercise of discretion of the courts below under Section 34 of the . Before it can justly do so	 the appellant must satisfy the Court	 on the relevant facts referred to by the Courts below	 that they exercised their discretion in a manifestly unreasonable or perverse way which was likely to defeat the ends of justice. The appellant has failed to do so in the instant case. [493C	 E F] Ormarod vs Todmordon	 ; Charles Osenton and Co. vs Johnston	 ; Gardner vs Jay	 ; Printers (Mysore) Pvt. Ltd. vs Pothan Joseph; 	 	 applied. Where the parties make mutual mistake misunderstand ing each other and are at cross purposes	 there is no real correspondence of offer and acceptance and the parties are not really consensus ad idem. There is thus no agreement at all; and the contract is void. Section 20 is concerned with common mistake of fact and not mutual mistake. A common mistake is there where both parties are mistaken about the same vital fact although both parties are ad idem	 e.g.	 the subject matter of the contract has already perished. A con tract in such a case is void. Where each party is mistaken as to the other 's intention	 though neither realises that the respective promises have been misunderstood	 there is mutual mistake. 1493H; 494A B] 6. A mistake will not affect assent unless it is the mistake of both parties	 and is as to the existence of some quality which makes the thing 475 without the quality essentially different from the thing as it was believed to be. Neither party can rely upon his own mistake to say that it was a nullity from the beginning	 no matter that it was a mistake which to his mind was fundamen tal	 and no matter that the other party knew that he was under a mistake. A fortiori	 if the other party did not know of the mistake but shared it. The question is not what the parties had in their minds	 but what reasonable third par ties would infer from their words or conduct. The court has to ascertain the "sense of the promises". [496E; 495G H] 7. The application of the doctrine of mutual mistake depends upon the true construction of the contract made between the parties. A mutual misunderstanding will not nullify a contract but only if the terms of contract con strued in the light of the nature of the contract and of the circumstances believed to exist at the time it was done show that it was never intended to apply to the situation which in reality existed at that time	 will the contract be held void. Thus a mistake as to an essential and integral element in the subject matter of the contract will avoid the con tract. A mistake as to the quality of the article contracted for may not always avoid the contract. A distinction	 there fore	 should be drawn between a mistake as to the substance of the thing contracted for	 which will avoid the contract and mistake as to its quality which will be without effect. According to circumstances even a mistake as to the sub stance of the thing contracted for may not necessarily render a contract void. Thus there must be a difference so complete that	 if the contract were enforced in the actual circumstances which have unexpectedly emerged	 this would involve an obligation fundamentally different from that which the parties believed they were undertaking. [496A H] 8. From the series of steps taken for repairs and the stipulations in the charter party including the modifica tions thereof	 it is not possible to hold that it was a case of mutual mistake as to a quality which made the trawlers transferred essentially different from the trawlers that the parties in their minds agreed to transfer. Therefore	 there was no mutual mistake and the contract would not be avoided on this ground. [498C D] Cooper vs Phibbs	 ; ; Ear/Beauchamp vs Winn.	 ; Hudders field Banking Co. vs Henry Lister & Sons	 [1895] 2 Ch. 273; Bell vs Laver Brs. Ltd.; 	 ; Kannedy vs Panama Royal Mail Co.	 ; Smith vs Hughes	 [1871] L.R. 6 Q.B. 597; Solle vs Butcher	 476 Fraderick E. Rose (London) Ltd. vs William H. Pim Junior & Co. Ltd. ; Sheikh Brothers LId. vs Arnold	 ; referred to. U.P. Government vs Nanhoo Mal	 A.I.R. 1960 All. 420	 approved. It is settled law that where the subject matter of a reference is illegal	 no award can be of any binding effect. If the contract itself was illegal	 the controversy as to whether it was illegal or not would not be a dispute arising out of the contract as also would be the question whether the contract was void ab initio. When	 however	 it is found that a binding contract was made which was not illegal what follows from such a contract would be covered by the expres sion "dispute arising out of contract". To stay a suit under Section 34 the Court has to see whether there was a valid agreement to have the dispute settled by arbitration and that the proceedings are in respect of a dispute so agreed to be referred. [498E	 (; H; 499A] 10. Public policy imposes certain limitations on the freedom of contract by forbidding the making of certain contracts. In such cases though all other requisites for formation of the contract are complied with	 parties to such forbidden contracts are not allowed to enforce any rights under them. In clear cases the law strikes at the agreement itself by making the contract illegal. However	 the effect and nature of illegality are by no means uniform and will depend upon the facts and circumstances of each case. Where a statute makes a contract illegal or where a certain type of contract is expressly prohibited there can be no doubt that such a contract will not be enforcible. [499B D] 11. A contract which was not illegal from the beginning may be rendered illegal later by the method of performance which did not comply with the statutory requirements. The appellant 's burden was to show that the charter party was illegal to take it out of the arbitration clause for if the contract is illegal and not binding on the parties the arbitration clause would also be not binding. Once it is shown to have been illegal it would be unenforcible as ex turpi causa non oritur actio. [499G H] 12. One who knowingly enters into a contract with im proper object cannot enforce his rights thereunder. The appellant in the instant case was also a party to the agree ment of charter party in respect of the two imported trawl ers. Though it purported to be actual user 's licence 477 there was no violation of this condition in view of the express permission granted by the Controller of Imports and Exports allowing the chartering of the two imported trawl ers. The modifications to the contract did not make any alteration so as to make the agreement contrary to the terms and conditions of the permission inasmuch as the permission was for a period of three years. The option to continue hire of the trawlers for a further period of three years did not ipso facto violate the permission. There was also no viola tion as to the duration of the charter party. [499H; 500C E] Taylor vs Barnett	 ; Anderson Wright Ltd. vs Moran and Company	 [1955] 1 S.C.R. 862; In Re arbi tration between Mahmoud and Isphani	 ; applied. 13. The Courts below were right in holding that the matters were arbitrable apart from the question of illegali ty	 invalidity of the contract. The question of invalidity of the contract due to the alleged mutual mistake would be de hors and independent of the contract and as such would not be referable under the arbitration clause. In so far as the question of illegality of the charter party is concerned as the appellant has not established that the charter party was illegal or void as initio	 the question whether the modification as alleged had rendered the contract illegal would be covered by the arbitration clause. [500F G] 14. In the instant case	 the reliefs claimed in the suit other than the question of ab initio invalidity or illegali ty of the contract would be referable. However	 it will be within the jurisdiction of the arbitrator to decide the scope of his jurisdiction. The Court cannot make a contract between the parties and its power ends with the interpreta tion of the contract between them. The same principle also applies to the arbitration agreement unless the parties to the arbitration agreement authorises the court to make and modify the agreement. The arbitrator shall proceed in ac cordance with law to decide the questions including that of jurisdiction	 if raised. [501C 1).