Summarize the following court judgment. l Appeal No. 665(N) of 1972. Appeal by special leave from the judgment and order dated August 27	 1971 of the High Court of Judicature at Allahabad in Civil Revision No. 680 of 1970. V. M. Tarkunde and Hardev Singh	 for the appellant. Respondent appeared in person. The Judgment of the Court was delivered by Mathew	 J. This appeal	 by special leave	 is from the order of the High Court of Allahabad allowing on application for revision of orders passed by the Civil Judge	 Saharanpur	 directing discovery of documents by the respondent and dismissing an application by him for permission to sue forma pauperis. The respondent filed a suit in forma pauperis on April 29	 1962	 against the appellant and his wife for recovery of damages to the tune of Rs. 7	48	000/ for malicious prosecution. Notice of the petition. to sue in forma pauperis was given to the State Government and the appellant under Order 33	 Rule 6 of the Civil Procedure Code. Both the Government and the appellant filed objections stating that the respondent is not a pauper. The appellant thereafter filed an application for discovery of documents from the respondent for proving that the respondent is not a. pauper. The Court passed an order on February 23	 1970	 directing the respondent to discover on affidavit the documents relating to the bank accounts of the respondent	 namely	 pass books cheque books	 counterfoils	 etc.	 from March 1	 1963	 to the date of filing the affidavit of discovery	 as also the documents in respect of the properties held by him and the personal accounts maintained by him. The respondent was to file the affidavit of 700 discovery on March 8	 1970. It was specifically stated that no extension of time will be allowed for filing the affidavit and that the discovery should be made within the time. The respondent did not file the affidavit in pursuance to the order. On March 31	 1970	 he moved an application stating. that he	 wants to file a revision against the order dated February 23	 1970	 before the High Court and that two months ' time may be allowed for the purpose. The Court rejected the application for time on April 4	 1970	 on the ground that the application for permission to sue in forma pauperis was pending for the last seven years and that the respondent had ample time for filing the revision if he was diligent in the matter. The respondent 's counsel then moved another application on the same day stating that the respondent wants to adduce evidence and that since he had not come to Court in the expectation that his earlier application dated March 31	 1970	 for adjournment would be allowed	 the case may be adjourned. This application was also rejected by the Court. And as counsel for the respondent reported no instruction and as there was no evidence to show that the respondent was a pauper	 the Court dismissed the application for permission to sue in forma Pauperis and directed the respondent to pay the court fee within 15 days. The respondent challenged the order directing discovery of documents passed on February 23	 1970	 and that dismissing his application for permission to sue in forma pauperis passed on April 4	 1970	 in revision before the High Court. The High Court hold that since the proceedings under rules 6 and 7 of Order 33 are summary in character	 the "sophisticated procedure" for discovery should not have been resorted to by the appellant	 that the documents of which discovery was sought were not specified in the application of the appellant and	 therefore	 the application for discovery was bad	 that the enquiry under rules 6 and 7 of Order 33 was primarily a matter between respondent and the State Government and that the trial court should not have adopted the procedure for discovery and inspection at the instance of a private party like the appellant. The Court further held that the trial Court acted with material irre gularity as it did not consider the question of the necessity for discovery of the documents or the relevancy of the documents of which discovery was sought and also for the reason that	 in ordering discovery of the documents relating to personal accounts	 and pass books	 it overlooked the right of the respondent to claim privilege. And as regards the order passed on April 4	 1970	 dismissing the application for permission to sue in forma pauperis after rejecting the application for adjournment	 the Court said that the trial Court betrayed an anxiety to get rid of 701 an application to add to the figures of its disposal. The Court	 therefore	 set aside the order for discovery as well as the order dismissing the application for permission to sue in forma pauperis. The respondent submitted that the procedure for discovery of documents is not permissible in proceedings under Order 33 and that it is not salutary to adopt the procedure even if permissible. In Vijay Pratap Singh vs Dukh Haran Nath Singh and another(1)	 this Court has held that "the suit commences from the moment an application for permission to sue in forma pauperis as required by Order 33 is presented. " If that be so	 the provisions of rule 12 of Order 11 relating to discovery would in terms apply to proceedings under Order 33. There is also no reason why	 if the provisions of Order 1	 rule 10 relating to additions of parties	 of Order 9 dealing with appearance of parties and consequence of non appearance	 and of Order 39 relating to temporary injunctions would apply to proceeding under Order 33	 the provisions in Order 11 dealing with dis covery of documents should not apply to	 such proceedings. In England	 discovery is ordered in any 'pause ' or 'matter ' in the Supreme Court to which the rules of the Supreme Court apply. And 'cause ' includes any action	 suit or other original proceeding between a plaintiff and defendant. Generally speaking	 discovery is granted there in all proceedings except purely criminal proceedings	 and civil proceedings where the action is brought merely to establish a forfeiture or enforce a penalty(1). There is no reason to hold	 if costs could be saved	 that it is not salutary to resort to the procedure in proceedings under Order 33. We think that the High Court was wrong in holding that since the application for discovery did not specify the documents sought to be discovered	 the lower Court acted illegally in the exercise of its jurisdiction in ordering discovery. Generally speaking	 a party is entitled to inspection of all documents which do not themselves constitute exclusively the other party 's evidence of his case or title. If a party wants inspection of documents in the possession of the opposite party	 he cannot inspect them unless the other party produces them. The party wanting inspection must	 therefore	 call upon the opposite party to produce the document. And how can a party do this unless he knows what documents are in the possession or power of the opposite party ? In other words	 unless the party seeking discovery knows what are the documents in the possession or custody of the opposite party which would throw light upon the question in controversy	 how is it possible for him to ask for dis covery of specific documents ? Order 1 1	 rule 12 provides : (1) 	675. (2) Halsbury 's Laws of England	 'Vol. 702 "12. Any party may	 without filing any affidavit	 apply to the Court for an order directing any other party to any suit to make discovery on oath of the documents which are or have been in his possession or power	 relating to any matter in question therein. On the hearing of such application the Court may either refuse or adjourn the same	 if satisfied that such discovery is not necessary or not necessary at that stage of the suit	 or make such order	 either generally or limited to certain classes of documents	 as may	 in its discretion	 be thought fit: Provided that discovery shall not be ordered when and so far as the Court shall be of opinion that it is not necessary either for disposing fairly of the suit or for saving costs". When the Court makes an order for discovery under the rule	 the opposite party is bound to make an affidavit of documents and if he fails to do so	 he will be subject to the penalties specified in rule 21 of Order 1 1. An affidavit of documents shall set forth all the documents which are	 or have been in his possession or power relating to the matter in question in the proceedings. And as to the documents which are not	 but have been in his possession or power	 he must state what has become of them and in whose possession they are	 in order that the opposite party may be enabled to get production from the persons who have posses sion of them (see form No. 5 in Appendix C of the Civil Pro cedure Code). After he has disclosed the documents by the affidavit	 he may be required to produce for inspection such of the documents as he is in possession of and as are relevant. The High Court was equally wrong in thinking lb at in pass ing the order for discovery	 the trial Court acted illegally in the exercise of its jurisdiction as it deprived the respondent of his right to claim privilege for non production of his pass book and personal accounts	 because the stage for claiming privilege had not yet been reached. That would be reached only when the affidavit of discovery is made. Order 11	 rule 13 provides that every affidavit of documents should specify which of the documents therein set forth the party objects to produce for inspection of the opposite party together with the grounds of objection. Nor do we think that the High Court was right in holding that the documents ordered to be discovered were not relevant to the injuiry. The documents sought to be discovered need not be admissible in evidence in the enquiry or proceedings. It is sufficient it the documents would be relevant for the purpose of throwing light on the matter in controversy. Every document which will throw any light on the case is a document relating to 703 a matter in dispute in the proceedings	 though it might not be admissible in evidence. In other words	 a document might be inadmissible in evidence yet it may contain information which may either directly or indirectly enable the party seeking discovery either to advance his case or damage the adversary 's case or which may lead to a trail of enquiry which m have either of these two consequences. The word 'document ' may this context includes anything that is written or printed	 no matter what the material may be upon which the writing or printing is inserted or imprinted. We think that the documents of which the discovery was sought	 would throw light on the means of the respondent to pay court fee and hence relevant. We venture to think that the High Court was laboring under a mistake when it said that the enquiry into the question whether the respondent was a pauper was exclusively a matter between him and the State Government and that the appellant was not interested in establishing that the respondent was not a pauper. Order 33	 rule 6 provides that if the Court does not reject the application under rule 5	 the Court shall fix a day of which at least 10 days ' notice shall be given to the opposite party and the Government pleader for receiving such evidence as the applicant may adduce in proof of pauperism and for hearing any evidence in disproof thereof. Under Order 33	 rule 9	 it is open to the Court on the application of the defendant to dispauper the plain . tiff on the grounds	 specified therein	 one of them being that his means are such that he ought not to continue to sue as a pauper. An immunity from a litigation unless. the requisite court fee is paid by the plaintiff is a valuable right for the defendant. And does it not follow as a corollary that the proceedings to establish that the applicant plaintiff is a pauper	 which win take away that immunity	 is a proceeding in which the defendant is vitally interested ? To what purpose does Order 33	 Rule 6 confer the right on the opposite party to participate in the enquiry into the pauperism and adduce evidence to establish that the applicant is ' not a pauper unless the opposite party is interested in the question and entitled to avail himself of all the normal procedure to establish it ? We can think of no reason why if the procedure for discovery is applicable to proceeding under Order 33	 the appellant should not be entitled to avail himself of it. We also do not think that there is any point in the criticism of the High Court that the order for discovery was vague. The first item in the order was in respect of the documents relating to the bank accounts of the respondent from March 1	 1963	 to the date of the affidavit. The second item related to documents in respect of the immovable properties held by him during the same 704 period and the third item was in respect of documents relating to the personal accounts maintained by him for the same period. The order was as specific as it could be. Counsel for the appellant contended that even if the order for discovery of documents was bad in law	 the High Court was not justified in interfering with it. And as regards the order dated April 4	 1970	 dismissing the application for permission to sue in forma pauperis after rejecting the application for time	 be said	 the High Court was really interfering with the discretion of the trial Court in the matter of adjournment	 The jurisdiction of the High Court under section 115 of the C.P.C. is a limited one. As long ago as 1884	 in Rajah Amir Hassan Khan vs Sheo Baksh Singh(1)	 the Privy Council made the following observation on section 622 of the former Code of Civil Procedure	 which was replaced by section 115 of the Code of 1908 "The question then is	 did the judges of the lower Courts in this case	 in the exercise of their jurisdiction	 act illegally or with material irregularity. It appears that they had perfect jurisdiction to decide the question which was before them	 and they did decide it. Whether they decided rightly or wrongly	 they had jurisdiction to decide the case; and even if they decided wrongly	 they did not exercise their jurisdiction illegally or with material irregularity. " In Balakrishna Udayar vs Vasudeva Aiyar(2)	 the Board observed : "It will be observed that the section applies to jurisdiction alone	 the irregular exercise or non exercise of it	 or the illegal assumption of it. The section is not directed against conclusions of law or fact in which the question of jurisdiction is not involved. " In N. section Venkatagiri Ayyangar vs Hindu Religious Endowments Board	 Madras(1)	 the Judicial Committee said that section 115 empowers the High Court to satisfy itself on three matters	 (a) that the order of the subordinate court is within its jurisdiction; (b) that the case is one in which the Court ought to exercise jurisdiction; and (c) that in exercising jurisdiction the Court has not acted illegally	 that is	 in breach of some provision of law	 or with material irregularity	 that is	 by committing some error of procedure in the course of the trial which is material in that it may have affected he ultimate decision. And if the High Court is satisfied on those three matters	 it. has no power to interfere because it differs from the conclusions of the subordinate court on questions of fact or law. (1)[1884] L. R. 11 1. A. 237. (2) [1917] L. R. 44 1. A. 261	 267. (3) [1948 49] L. R. 76	 1. A. 67. 705 This Court in Manindra Land and Building Corporation Ltd. vs Bhutnath Banerjee and others(1) and Vora Abbashhai Ali (2 mahomed vs Haji Gulamnabi Haji Safibhai ) has held that a distinction must be drawn between the errors committed by sub ordinate courts in deciding questions of law which have relation to	 or are concerned with	 questions of jurisdiction of the said Court	 and errors of law which have no such relation or connection. In Pandurang Dhoni Chougute vs Maruti Hari Jadhav(3)	 this Court said : "The provisions of section 115 of the 'Code have been examined by judicial decisions on several occasions. While ex ercising its jurisdiction under section 115	 it is not competent to the High Court to correct errors of fact however gross they may be	 or even errors of law	 unless the said errors have relation to the jurisdiction of the Court to try the dispute itself. As clauses (a)	 (b) and (c) of section 15 indicate	 it is only in cases where the subordinate Court has exercised a jurisdiction not vested in it by law	 or has failed	 to exercise a jurisdiction so vested	 or has acted in the exercise of its jurisdiction illegally or with material irregularity that the revisional jurisdiction of the High Court can be properly invoked. It is conceivable that points of law may arise in proceedings instituted before subordinate courts which are related to questions of jurisdiction. It is well settled that a plea of limitation or a plea of rasjudica is a plea of law which concerns the jurisdiction of the Court which tries the proceedings. A finding on these pleas in favour of the party raising them would oust the jurisdiction of the court and so	 an erroneous decision on these pleas can be said to be concerned with questions of jurisdiction which fall within the purview of section 115 of the Code. But an erroneous decision on a question of law reached by the subordinate court which has no relation to questions of jurisdiction of that court cannot be corrected by the High Court under section 115. " The "jurisdiction" is a verbal coat of many colours Jurisdiction originally seems to have had the meaning which Lord Reid ascribed to it in Anisminic Ltd. vs Foreign Compensation Commission (4 ) 	 namely	 the entitlement "to enter upon the enquiry in question". If there was an entitlement to enter upon an enquiry into the question	 ben any subsequent error could only be regarded as an error within the jurisdiction. The best known formulation of this theory is that made by Lord Denean in R. vs (1) ; (2) ; (3) (4) ; 706 Bolton(1). He said that the question of jurisdiction is determinable at the commencement	 not at the conclusion of the enquiry. In Anisminic Ltd. (2) 	 Lord Reid said: "But there are many cases where	 although the tribunal had jurisdiction to enter on the enquiry it has done or failed to do something in the course of the enquiry which is of such a nature that its decision is a nullity. It may have given its decision in bad faith. It may have made a decision which it had no power to make. It may have failed in the course of the enquiry to comply with the requirements of natural justice. It may in perfect good faith have misconstrued the provisions giving it power to act so that it failed to deal with the question remitted to it and decided some question which was not remitted to it. It may have refused to take into account something which it was required to take into account. Or it may have based its decision on some matter which	 under the provisions setting it up	 it had no right to take into account. I do not intend this list to be exhaustive. " In the same case	 Lord Pearce said "Lack of jurisdiction may arise in various ways. There may be an absence of those formalities or. things which are conditions precedent to the tribunal having any jurisdiction to embark on an	enquiry. Or the tribunal may at the end make an order that it has no jurisdiction to make. Or	 in the intervening stage while engaged on a proper enquiry	 the tribunal may depart from the rules of natural justice; or it may ask itself the wrong questions; or it may take into account matters which it was not directed to take into account. Thereby it would step outside its jurisdiction. It would turn its inquiry into something not directed by Parliament and fail to make the inquiry which the Parliament did direct. Any of these things would cause its purported decision to be a nullity. " The dicta of the majority of the House of Lords in the above case would show the extent to which `lack ' and 'excess ' of jurisdiction have been assimilated or	 in other words	 the extent to which we have moved away from the traditional concept of "jurisdiction". The effect of the dicta in that case is to reduce the difference 'between jurisdictional error and error of law within jurisdiction almost to vanishing point. The practical effect of the decision is that any error of law can be reckoned as jurisdictional. This (1) ; (2) [1969] 2A. C. 147. 707 comes perilously close to saying that there is jurisdiction it the decision is right in law but none if it is wrong. Almost any misconstruction of a statute can be represented as "basing their decision on a matter with which they have no right to deal"	 "imposing an unwarranted condition" or "addressing themselves to a wrong question". The majority opinion in the	 case leaves a Court or Tribunal with virtually no margin of legal error. Whether there is excess of jurisdiction or merely error within jurisdiction can be determined only by construing the empowering statute	 which will	 give little guidance. It is really a question of how much latitude the Court is prepared to allow. in the end it can only be a value judgment (see H.W.R. Wade	 "Constitutional and Administrative Aspects of the Anismanic case"	 Law Quarterly Review	 Vol. 85	 1969	 p. 198). Why is it that a wrong decision on a question of limitation or res judicata 'was treated as a jurisdictional error and liable to be interfered with in revision ? It is a it difficult to understand how an erroneous decision on a question of limitation or res judicata would oust the jurisdiction of the Court in the primitive sense of the term and render the decision or a decree embodying the decision a nullity liable to collateral attack. The reason can only be that the error of law was considered as vital by the Court. And there is no yardstick to determine the magnitude of the error other than the opinion of the Court. The trial Court had jurisdiction to pass the order for discovery. Even if lack of jurisdiction is ' assumed to result from every material error of law even an error of law within the jurisdiction in the primitive sense of the term we do not think the order was vitiated by any error of law. The rejection of the application for time and the consequent dismissal of the petition for permission to sue in forma pauperis can hardly be said to sound in jurisdic tional error even in its extended sense	 as already explained. We are also not satisfied that the refusal to adjourn occasioned any failure of natural justice so as to render the order a nullity. Nor is there anything to show that in rejecting the application for time the Court acted illegally or with material irregularity in the exercise of its jurisdiction. We would	 therefore	 set aside the order of the High Court and allow the appeal but in the circumstances make no order as to costs. This order will not in any way affect the validity of the order passed by the High Court on August 26	 1971	 directing the respondent to delete the name of the wife of the appellant from the array of parties. V.P.S. Appeal allowed.

The respondent filed an application for permission to sue in forma pauperis against the appellant	 and notice of the petition was given to the state Government and the appellant under O.33	 r. 6	 CPC. The Government and the appellant filed objections	 that the respondent was not a pauper. The appellant also filed an application for discovery of docu ments from the respondent for proving that the respondent was not a pauper. The Court passed an order directing the respondent to discover on affidavit the documents relating to bank accounts of the respondent for a specified period. The respondent did not file the affidavit on the prescribed date but filed applications for time which were dismissed by the Court and the Court thereafter dismissed the application for permission to sue in form pauper is as there was no evidence to show that the respondent was a pauper and directed the respondent to pay the court fees. The respondent challenged the orders directing discovery of documents and dismissing the application for permission to sue in forma pauperis in revision before the High Court.	 The High Court set aside the two orders holding that; (1) Since the proceedings under O.33	 rr. 6 and 7 are summary	 discovery should not have been ordered : (2) the documents of which discovery was sought were not specified in the application of the appellant	 (3) the inquiry under O.33	 rr. 6 and 7 was a matter between the respondent and the State Government and discovery and inspection at the instance of a private party like the appellant should not have been ordered;(4) the trial court acted with material irregularity as it did not consider the question of the necessity for discovery of the documents or the relevance of the documents of which discovery was sought; (5) the trial court overlooked the right of the respondents to claim pri vilege; and (6) the trial court	 rejected the application to sue in forma pauperis for statistical purposes. Allowing the appeal to this Court	 HELD : (1) The suit commences from the moment an application for permission to sue in forma paupers as required by O. 33 C.P.C. is presented and the provisions of Order 1	 r. 10	 of O.9 and O.39 would apply to it. If that be so	 there is no reason why the provisions of O.11 r. 12 relating to discovery should not also apply to proceedings under O.33. [701B C] Vijay Pratap Singh vs Dukh Haran Nath Singh and Anr.	 	 675. followed. (2) When the ' Court makes order for discovery the opposite party is bound to make an affidavit of documents and if he fails to do so he will be subject to the penalties specified in O.11	 r. 21. An affidavit of documents shall set forth all the documents which are or have been in his possession or power relating to the matter in question in the proceedings. As to documents which are not but have been in his possession or power he must state what has become of them in order that the other Party may Ll529upCI/73 698 be able to get their production. Therefore	 unless the party discovery knows what are the documents in the possession of custody of the other party which would throw light. upon the matter in controversy it is not possible for him to ask for discovery and inspection of specific documents. 	 In the circumstances therefore the order was as specific as it could be. 	 [702C F] (3) Order 33	 r. 6 provides that it the Court does not reject the application under r. 5 notice shall be given to the opposite party and the Government pleader for receiving such evidence as the applicant may	 adduce in proof of pauperism and for hearing any evidence in disproof thereof. Also under O.	33	 r. 9 it is open to the Court on the application of the defendant to disappear the plaintiff on the grounds specified therein one of which is	 that his means are such that he should not be allowed to continue to sue as a pauper. Since an immunity from litigation unless the requisite court fee is paid by the plaintiff	 is a valuable right for the ' defendant	 the inquiry into pauperism is not a matter exclusively between the Government and the plaintiff. [703C G] (4) The High Court was not right in holding that the documents were not relevant for the inquiry. The documents sought to be discovered need not be admissible in evidence in the inquiry or proceedings. It is sufficient if they would be relevant for the purpose of throwing light on the matter in controversy. A document might. be inadmissible in evidence and yet may contain information which may either directly or indirectly enable the party seeking discovery either to advance his case or damage the adversary 's case or which may lead to a trail of inquiry which may have either of these two consequences. Since documents of which dis covery was sought would throw light on the means of the respondent to pay the court fee they are relevant. [702H; 703A C] (5) The High Court was wrong in holding that the plaintiff 's right to claim privilege was affected by the order	 because	 the stage for claiming privilege had not yet been reached. 	 That would be reached only when the affidavit of discovery is made	 and the plaintiff objects under O.11	 r. 13	 to produce for inspection by the Opposite party specific documents. [702E G] (6) (a) A distinction must be drawn between errors committed by subordinate courts in deciding questions of law which have relation to	 or are concerned with	 questions of jurisdiction of the Court and errors of law which have no such relation or connection	 for the purposes of section 115	 C.P.C. If there was an entitlement to enter upon an inquiry into a question then any subsequent error committed by the Court could not be regarded as an error of jurisdiction	 because the question of jurisdiction is determinable at the commencement and not at the conclusion of the inquiry. [705A B	 G H; 706A] Manidra Land and Building Corporation Ltd. vs Bhutnath Banerjee & Ors	 A.I.R. Vora Abbashhai Alimahommed vs Haji Gulamnabi Haji Safibhai	 ; and Pandurangh Dhoni Chougule vs Maruti Hari Jadhav	 ; 	 followed. Rajah Amir Hassan Khan vs Sheo Baksh Singh	 [1884] L.R. II I.A. 237	 Balakrishana Udayar vs Vasudeva Aiyar	 [1917] L.R.44 I.R. 261	 Venkatagiri Ayyangar vs Hindu Religious Endowments Board	 Madras	 (.194849) L.R.76 I.A. 67	 Anisminic Ltd.	 vs Foriegn Composition	 Commission ; and R. vs	 Botton	 [184	41]		 I Q.B. 66 referred to. 699 (b) But the effect of the observations in the Anisminic case is to reduce the difference between a jurisdictional error and an error	 of law within jurisdiction	 almost to a vanishing point. The practical effect of the decision is that any error of law can be reckoned as jurisdictional.[706 H] In the present case even if lack of jurisdiction is assumed to result from every material error of law even an error of law within the jurisdiction as generally understood the order of the trial court (was not vitiated by any such error. of law and the High court was not justified in interfering with it in revision. The trial court had jurisdiction to pass the order for discovery. The rejection of the application for time and the consequent dismissal of the petition for permission to sue in forma pauperis cannot be said to sound in jurisdictional error even in its extended sense. The refusal to adjourn had not occasioned any failure of natural justice	 nor is there any thing to show that in rejecting the application for time the trial court acted illegally or with material irregularity in the exercise of its jurisdiction. [707D G]