Summarize the following court judgment. Civil Appeals Nos. 679 and 680 of 1957. Appeals by special leave from the judgment and decree dated the January 5	 1955	 of the Patna High Court	 in M.J.C. Nos. 374 & 375 of 1952. 303 R. J. Kolah and R. Patnaik	 for the appellant. A. N. Kripal and D. Gupta	 for the respondent. May 14. The Judgment of the Court was delivered by BHAGWATT J. These are two connected appeals with special leave granted by this Court under article 136 of the Constitution and arise out of the appellant 's assessment to Income tax for the assessment year 1946 47 and Excess Profits Tax for the chargeable accounting period January 9	 1945	 to February 2	 1946. The appellant is a Hindu undivided family carrying on extensive business in grain as merchants and commission agents. It is one of the premier grain merchants and wholesalers of Sahibganj in the District of Santhal Parganas in the State of Bihar. It has branches at Nawgachia in the District of Bhagalpur and at Dhulian in the District of Murshidabad in West Bengal. The appellant filed its Income tax Return for the assessment year 1946 47 showing a loss of Rs. 46	415 in the business. The Income tax Officer	 Patna	 however	 in the course of the assessment noticed that the appellant had encashed high denomination notes of the value of Rs. 2	9 1	000 on January 19	 1946. The Income tax Officer asked for an explanation which the appellant gave stating that these notes formed part of its cash balances including cash balance in the Almirah account. The cash balances of the appellant on January 12	 1946	 on which date the High Denomination Bank Notes (Demonetisation) Ordinance	 1946	 was promulgated were Rs. 29	284 3 9 in its Rokar and Rs. 2	81	397 10 0 in the Almirah account. The Almirah account was an account for moneys withdrawn and kept at home. The appellant sought to prove the fact that the high denomination notes eneashed by it formed part of its cash balances from certain entries in its accounts wherein the fact that moneys were received in high denomination notes had been noted. Portions of these entries to the effect that moneys had been received in high denomination notes were found 304 by the Income tax Officer to be subsequent interpolations made by the appellant with a view to advance its case that the cash balances contained the high denomination notes encashed by it. The Income tax Officer found that the appellant 's food grains licence at Nawgachia had been cancelled for the accounting year for its failure to keep proper stock accounts and that the appellant was prosecuted under the Defence of India Rules but had been acquitted having been given the benefit of doubt. The Income tax Officer also had regard to the fact that the appellant was a speculator and that as a speculator the appellant could easily have earned amounts far in excess of the value of the high denomination notes encashed. He con. sidered that even in the disclosed volume of business in the year under consideration in the Head Office and in the branches	 there was possibility of his earning a considerable sum as against which it showed a net loss of about Rs.46	000. The Income tax Officer also noticed that notwithstanding the fact that the period was very favourable to food grains dealers	 the appellant had declared a loss for the assessment year 194445 up to 1946 47	 though it had the benefit of a large capital on hand. The Income tax Officer further took into consideration the circumstances that Nawgachia and Dhulian were very important business centers and Sahibganj	 the principal place of business	 had gained sufficient notoriety for smuggling foodgrains and other commodities to Bengal by country boats. Dhulian which was just on the Bengal	 Bihar border was also reported to be a great receiving centre for such commodities. Having regard to all these circumstances	 the Income tax Officer rejected the appellant 's explanation that the high denomination notes formed part of its cash balances and treated the sum of Rs. 2	91	000 as the appellant 's secreted profits from business and included it in its total income and assessed the appellant for the said assessment year on the income of Rs. 1	39	117. Dealing with the Excess Profits Tax assessment	 he also held that the said income was derived from the business of the appellant and hence it was liable to excess profits tax also	 305 The appellant preferred an appeal to the Appellate Assistant Commissioner against both these assessment orders and by his orders dated February 28	 1951	 the Appellate Assistant Commissioner upheld the orders of the Income tax Officer and dismissed the appeals. On further appeals from the said orders of the Appellate Assistant Commissioner to the Income tax Appellate Tribunal	 the Tribunal by its order dated April 29	 1952	 dismissed both the appeals as regards the Incometax as well as Excess profits tax. Even though before the Income tax Officer and the Appellate Assistant Commissioner the case of the appellant was that the account book which contained the entries in regard to the receipts of moneys in high denomination notes were genuine and correct	 this position was abandoned by the appellant before the Tribunal. Before the Tribunal	 the appellant stated that the said entries were made in sheer nervousness after coming into force of the High Denomination Bank Notes (Demonetization) Ordinance	 1946	 on January 12	 1946	 as the appellant did not know that it had specific proof in its possession of having the high denomination notes as part of its cash balances. The Tribunal held that there was no other reason to suspect the genuineness of the account books in which these interpolations were made. If the entire account books were fabricated to serve its purpose	 there would be no need for the appellant to make interpolations between the lines already written in a different ink and in such an obvious manner as to catch one 's eye on the most cursory perusal. The Tribunal	 however	 examined the cash book and taking into consideration all the circumstances which had been adverted to by the Income tax Officer held that the appellant might be expected to have possessed as part of its business cash balance of at least Rs. 1	50	000 in the shape of high denomination notes on January 12	 1946	 when the Ordinance above mentioned was promulgated. A copy of the statement of large amounts received by the appellant from a single constituent had been filed by the appellant which showed that sums aggregating to Rs. 5	04	713 had been received by the appellant in large amounts 39 306 exceeding Rs. 1	000 between February 6	 1945	 and January 11	 1946. As to large payments made by the appellant	 no statement was filed	 but the Tribunal examined the accounts with a view to ascertain the payments which could have been made in high denomination notes. The Tribunal came to the conclusion that the nature of the source from which the appellant derived the remaining 141 high denomination notes of Rs. 1	000 each remained unexplained to its satisfaction. It accordingly ordered that the addition made by the authorities be reduced from Rs. 2	91	000 to Rs. 1	41	000. The Income tax Officer was also directed to make the necessary consequential adjustment in the Income tax assessment based upon the result of the connected Excess Profits Tax appeal. In regard to the Excess Profits Tax appeal the Tribunal after taking into account the preceding and succeeding assessments and the nature of the appellant 's business and the opportunities that it had to make substantial business profits outside the books held that the add back of Rs. 1	41	000 must be made to the business profits disclosed by the appellant. Consequential relief was accordingly given in the Excess Profits Tax appeal also. The appellant thereafter applied to the Tribunal for stating a case and raising and referring to the High Court the following questions of law arising from the said order of the Tribunal both as regards the Incometax and the excess profits tax assessments : (1) " Whether there is any material to justify the conclusion that Rs. 1	41	000 is secreted profit for the purpose of assessment	 this amount being a part of section 2	91	000 and which was the amount represented by high denomination notes encashed by the Petitioner. (2) " Whether there is any material for a finding that the sum of Rs. 1	41	000 is the secreted value of the high denomination notes was business income liable to excess profits tax. " By its order dated August 15	 1952	 the Tribunal dismissed these applications stating that the finding of the taxing authorities was a pure finding of fact based 307 on evidence before them and that no question of law arose out of the said order of the Tribunal. The appellant thereupon made applications to the High Court under section 66(2) for directing the Tribunal to state a case and raise and refer the said questions of law to the High Court for its decision. By its order dated January 21	 1953	 the High Court directed the Tribunal to state a case and raise and refer the following question of law to the High Court I for its decision in both the applications: Whether there is any material to support the finding of the Appellate Tribunal that a sum of Rs. 1	41	000 is secreted profit liable to be taxed in the hands of the assessee under the Indian Incometax Act and under the Excess Profits Tax Act " The tribunal accordingly stated a case and raised and referred the aforesaid question of law to the High Court. The said Reference was heard by the High Court and judgment was delivered on January 5	 1955	 whereby the High Court answered the referred question in the affirmative. The High Court was of the opinion that the onus of proving the source of the said amount was on the appellant which the appellant did not discharge and that there was evidence before the Tribunal to come to the conclusion it did. The finding arrived at by the Tribunal was therefore a pure finding of fact and it could not be urged that it was based on no evidence. The High Court further held that as the appellant itself claimed that the said amount of Rs. 2	91	000 formed part of the cash balance of its business	 the said profits were profits of the business and as such liable to excess profits tax. The appellant then applied to the High Court for a certificate under section 66A (2) of the Income tax Act for leave to appeal to this Court. These applications were rejected by the High Court on August 25	 1955	 observing that it had answered the question of law not on the academic principles of onus but on the material from which it was open to the Income tax authorities to arrive at the conclusion at which they arrived. 308 The appellant thereupon on October 22	 1955	 applied to this Court for special leave to appeal which was granted by this Court on November 28	 1955	 in both the appeals arising out of the assessment for Income tax as well as the excess profits tax. Both the appeals arising out of these orders being Civil Appeals Nos. 679 and 680 of 1957 are now before us. The main question to determine in these two appeals is whether there was any material to support the finding of the Tribunal that the sum of Rs. 1	41	000 represented the secreted profits of the appellant 's business and as such liable to be taxed in the hands of the appellant under the Indian Income tax Act and the Excess Profits Tax Act ? The contention of the Revenue all throughout has been that it is a finding of fact reached by the authorities competent in that behalf and this Court should not interfere with such findings of fact. The contention of the appellant on the other hand	 has been that even though it may be a finding of fact to be reached by the authorities concerned on the materials on the record before them	 such finding is vitiated by reason of the authorities indulging in conjectures	 suspicions and surmises and basing the same on no material whatever which goes to support the same. It is also contended that the finding reached by them is a perverse one which a reasonable body of men could not have arrived at on the material on the record. The limits of our jurisdiction to interfere with finding of fact reached by the courts or tribunals of facts have been laid down by us in various decisions of this Court. In Dhirajlal Girdharilal vs Commissioner of Income tax	 Bombay (1) we observed that when a Court of fact arrives at its decision by considering material which is irrelevant to the enquiry	 or acts on material	 partly relevant and partly irrelevant	 where it is impossible to say to what extent the mind of the Court was affected by the irrelevant material used by it in arriving at its decision	 a question of law arises: Whether the finding of the Court of fact is not vitiated by reason of its having (1) 309 relied upon conjectures	 surmises and suspicions not supported by any evidence on record or partly upon evidence and partly upon inadmissible material. We also observed in Dhakeswari Cotton Mills Ltd. vs Commissioner of Income tax	 West Benyal (1) that an assessment so made without disclosing to the assessee the information supplied by the departmental representative and without giving any opportunity to the assessee to rebut the information so supplied and declining to take into consideration all materials which the assessee wanted to produce in support of the case constituted a violation of the fundamental rules of justice and called for interference on our part. In Messrs. Metha Parikh and Co. vs The Commissioner of Income tax	 Bombay( ') this Court observed that the conclusions based on facts proved or admitted may be conclusions of fact but whether a particular inference can legitimately be drawn from such conclusions may be a question of law. Where	 however	 the fact finding authority has acted without any evidence or upon a view of the facts which could not reasonably be entertained or the facts found were such that no person acting judicially and properly instructed as to the relevant law could have found	 the Court is entitled to interfere. In our decision in Meenakshi Mills	 Madurai vs Commissioner of Income tax	 Madras (3) after discussing the various authorities on the subject we laid down that: (3) A finding on a question of fact is open to attack under section 66(1) as erroneous in law when there is no evidence to support it or if it is perverse. " The latest pronouncement of this Court in Omar Salay Mohamed Sait vs The Commissioner of Income tax	 Madras (4) summarises the position thus	: " We are aware that the Income tax Appellate Tribunal is a fact finding Tribunal and if it arrives at its own conclusions of fact after due consideration of the evidence before it this Court will not (1) [1955] I S.C.R. 941. (3) [19561 S.C.R. 69i. (2) ; (4) C.A. No. 15 Of 1958 decided on March 5	 1959. 310 interfere. It is necessary	 however	 that every fact for and against the assessee must have been considered with due care and the Tribunal must have given its finding in a manner which would clearly indicate what were the questions which arose for determination	 what was the evidence pro and contra in regard to each one of them and what were the findings reached on the evidence before it. The conclusions reached by the Tribunal should not be coloured by any irrelevant considerations or matters of prejudice and if there are any circumstances which required to be explained by the assessee	 the assessee should be given an opportunity of doing so. On no account whatever should the Tribunal base its findings on suspicions	 conjectures or surmises nor should it act on no evidence at all or on improper rejection of material and relevant evidence or partly on evidence and partly on suspicions	 conjectures and surmises and if it does anything of the sort	 its findings even though on questions of fact will be liable to be set aside by this Court. " It is in the light of these observations that we have to determine the question arising before us in the present appeals. It is clear on the record that the appellant maintained its books of account according to the mercantile system and there were maintained in its cash books two accounts: one showing the cash balances from day to day and other known as " Almirah account " wherein 'Were kept large balances which were not required for the day to day working of the business. Even though the appellant kept large amounts in bank deposits and securities monies were required at short notice at different branches of the appellant. There were also collections made from various Beoparies or merchants and monies were also required for doing the grain purchase work on behalf of the Government. These monies were credited in the Almirah account which showed heavy cash balances from time to time. In the books of account for previous years it was the practice of the appellant to give details of the notes of high denominations giving the distinctive numbers of these notes received or paid 311 or at least other description e.g.	 " So many notes " of Rs. 1	000 each. In the assessment year	 however	 this practice does not appear to have been followed but entries continued to be made of monies thus received from the banks	 different branches	 Beoparees etc. 	 without any such details being filled therein. A statment of these cash balances viz.	 the balance in the Rokar and the balance in the Almirah from September 1	 1945	 to January 31	 1946 was filed before the Income tax authorities and this statement showed that apart from the balance in the Rokar the balance in the Almirah rose from Rs. 1	36	397 10 0 on September 1	 1945	 to Rs. 1	97	397 10 0 on September 30	 1945	 to Rs. 2	23	397 10 0 on October 13	 1945	 to Rs. 2	65	397 10 0 on November 27	 1945	 to Rs. 2	91	397 10 0 on December 29	 1945	 and remained at Rs. 2	81	397 10 0 on January 10	 1946. The balance in the Rokar fluctuated considerably but on the relevant date January 10	 1946	 it stood at Rs. 26	092 10 9.It was Rs. 24	976 13 3 on January II	 1946	 and Rs. 29	284 3 9 on January 12	 1946	 when the High Denomination Bank Notes (Demonetization) Ordinance	 [1946	 was promulgated. These entries showed that there was with the appellant on on January 12	 1946	 an aggregate sum of Rs. 3	10	681 13 9 and it was highly probable that the High Denomination notes of Rs. 2	91	000 were included in this sum of Rs. 3	10	681 13 9. The books of account of the appellant were not challenged in any other manner except in regard to the interpolations relating to the number of high denomination notes of Rs. 1	000 each obviously made by the appellant in the accounts for the assessment year in question in the manner aforesaid and even in regard to these interpolations the explanation given by the appellant in regard to the same was accepted by the Tribunal. Even though the Income tax Officer made capital out of the interpolations and subsequent insertions in the books of account and styled the evidence furnished by them as created or manipulated evidence thus discounting the story of the appellant in regard to the source of these high denomination notes	 the Tribunal 312 was definitely of opinion that there was no other reason to suspect the genuineness of the account books in which these interpolations were found. As a matter of fact the Tribunal accepted these books of account as genuine and worked up its theory on the basis of the entries which obtained in these books of account. The Tribunal had before it the statement of large amounts received by the appellant from the banks	 different branches of the appellant and its Beoparees or merchants which showed that between February 6	 1945	 and January 11	 1946	 amounts exceeding Rs. 1	000 aggegrating to Rs. 5	04	713 had been received by the appellant. Even though large amounts may have been paid out by the appellant in this manner between the said dates	 the entries of the balance in Rokar and the balance in Almirah showed that on January 12	 1946	 the balance in Rokar was Rs. 26	234 3 9 and the balance in Almirah was Rs. 2	81	397 10 0 the total cash balance thus aggregating to Rs. 3	10	681 13 9. Nobody had any inkling of the promulgation of the High Denomination Bank Notes (Demonetization) Ordinance	 1946	 on January 12	 1946	 and if in the normal course of affairs and situated as the appellant was	 the appellant kept these large cash balances in High Denomination Notes of Rs. 1	000 each	 there was nothing surprising or improbable in it. If the appellant had to disburse such large sums of monies at short notices at the different branches of the appellant and also to its Beoparees apart from financing the Government for grain purchase work which it used to carry on	 it would be convenient for it to handle these large sums of monies in high denomination notes of Rs. 1	000 each and the most natural thing for it to do was to keep these cash balances in as many high denomination notes as possible. The Tribunal in fact took count of this position and after giving due weight to all the circumstances arrived at the conclusion that the appellant might be expected to have possessed as part of its business cash balance at least Rs. 1	50	000 in the shape of high denomination notes on January 12	 1946	 when the Ordinance above mentioned was promulgated. This conclusion 313 of the Tribunal could only be arrived at on the basis that the entries in the books of account in regard to the balance in Rokar and the balance in Almirah were correct and represented the true state of affairs	 in spite of the interpolations and subsequent insertions which had been made to bolster up the true case. If these were the materials on record which would lead to the inference that the appellant might be expected to have possessed as part of its cash balance at least Rs. 1	50	000 in the shape of high denomination notes on January 12	 1946	 when the Ordinance was promulgated	 was there any material on record which would legitimately lead the Tribunal to come to the conclusion that the nature of the source from which the appellant derived the remaining 141 high denomination notes of Rs. 1	000 each remained unexplained to its satisfaction. If the entries in the books of account in regard to the balance in Rokar and the balance in Almirah were held to be genuine	 logically enough there was no escape from the conclusion that the appellant had offered reasonable explanation as to the source of the 291 high denomination notes of Rs. 1	000 each which it encashed on January 19	 1946. It was not open to the Tribunal to accept the genuineness of these books of account and accept the ex planation of the appellant in part as to Rs. 1	50	000 and reject the same in regard to the sum of Rs. 1	41	000 0 0. Consistently enough	 the Tribunal ought to have accepted the ' explanation of the appellant in regard to the whole of the sum of Rs. 2	91	000 and held that the appellant had satisfactorily explained the encashment of the 291 high denomination notes of Rs. 1	000 each on January 19	 1946. The Tribunal	 however	 appears to have been influenced by the suspicions	 conjectures and surmises which were freely indulged. in by the Income tax Officer and the Appellate Assistant Commissioner and arrived at its own conclusion	 as it were	 by a rule of thumb holding without any proper materials before it that the appellant might be expected to have possessed as part of its business	 cash balance at least Rs. 1	50	000 in the shape of high denomination notes on January 40 314 12	 1946	 a mere conjecture or surmise for which there was no basis in the materials on record before it. The Income tax Officer had indented in support of his conclusion the surrounding circumstances	 viz.	 that the appellant was one of the premier Arhatdars and grain merchants of Sahibgan1 with branches	 doing similar business	 at Nawgachia and Dhullian and all these places were very important business centres and Sahibganj	 the principal place of business	 had gained sufficient notoriety for smuggling foodgrains and other commodities to BenLal by country boats	 and Dhulian which was just on the Bihar Bengal border was reported to be a great receiving centre for such commodities	 that the foodgrains licence of the appellant at Nawgachia was also cancelled during the accounting year for not keeping proper stock accounts and the appellant was prosecuted under the Defence of India Rules but was given the benefit of doubt and was acquitted	 that the accounting year and the year preceding it as also the year succeeding it were very favourable for the foodgrain dealers but the appellant though he had large capital in hand declared losses all through from 1944 45 assessment year up to 1946 47 assessment year	 the loss according to its books in the year under consideration being to the tune of about Rs. 46	000	 that the appellant was in very favourable circumstances in which there was a pos sibility of its earning a considerable amount in the year under consideration	 that it also indulged in speculation (a loss of about Rs. 40	000 shown in Nawgachia branch (in Kalai account))	 in which profit in a single transaction or in a chain of transactions could exceed the amounts involved in the high denomination notes	 that even in the disclosed volume of business in the year under consideration in the Head Office and in branches there was possibility of its earning a considerable sum as against which showed a net loss of about Rs. 45	000 and that the appellant had all these probable source or sources from which the appellant could have earned the sum of Rs. 2	91	000 which was represented by the high denomination notes of Rs. 1	000 315 The Appellate Assistant Commissioner also emphasized the said aspect but based his conclusion mainly on the ground that the appellant had failed to prove that the high denomination notes had their origin in capital and not in profit and held that the Income tax Officer was justified in treating the sum of Rs 2	91	000 as secreted profits. This was the background against which the Tribunal came to its own conclusion. Even though it recognised that it was not improbable that when very large sums	 say in excess of Rs. 10	000 at a time were received	 a fairly good portion thereof consisted of high denomination notes and as high denomination notes were valid tender and nobody could have foreseen that they would be demonetised suddenly in January 1946	 there was nothing out of the way in persons dealing with tens of thousands of rupees and whose balances ran to lakhs	 being in possession of a fair proportion of their balances in the shape of high denomination notes. While recognizing this probability of the appellant having been in possession of a fair proportion of its balances in the shape of high denomination notes	 the Tribunal unconsciously though it was	 fell into an error when it held that the appellant might be expected to have possessed at least Rs. 1	50	000 in the shape of high denomination notes as part of its cash balance	 thus treating the remaining Rs. 1	41	000 in the high denomination notes of Rs. 1	000 each as outside the purview of these cash balances. Unless the Tribunal had at the back its mind the various probabilities which had been referred to by the Income tax Officer as above it could not have come to the conclusion it did that the balance of Rs 1	41	000 comprising of the remaining 141 high denomination notes of Rs. 1	000 each was not satisfactorily explained by the appellant. If the entries in the books of account were genuine and the balance in Rokar and the balance in Almirah on January 12	 1946	 aggregated to Rs. 3	10	681 13 9 and if it was not improbable that a fairly good portion of the very large sums received by the appellant from time to time	 say in excess of Rs. 10	000 at a time 316 consisted of high denomination notes	 there was no basis for the conclusion that the appellant had satisfactorily explained the possession of Rs. 1	50	000 in the high denomination notes of Rs. 1	000 each leaving the possession of the balance of 141 high denomination notes of Rs. 1	000 each unexplained. Either the Tribunal did not apply its mind to the situation or it	 arrived at the conclusion it did merely by applying the rule of thumb in which event the finding of fact reached by it was such as could not reasonably be entertained or the fact found were such as no person acting judicially and properly instructed as to the relevant law could have found	 or the Tribunal in arriving at its findings was influenced by irrelevant considerations or indulged in conjectures	 surmises or suspicions in which event also its finding could not be sustained. Adverting to the various probabilities which weighed with the Income tax Officer we may 'observe that the notoriety for smuggling foodgrains and other commodities to Bengal by country boats acquired by Sahibgunj and the notoriety achieved by Dhulian as a great receiving centre for such commodities were merely a background of suspicion and the appellant could not be tarred with the same brush as every Arhatdar and grain merchant who might have been indulging in smuggling operations	 without an iota of evidenec in that behalf. The cancellation of the foodgrain licence at Nawgachia and the	 prosecution of the appellant under the Defence of India Rules was also of no consequence inasmuch as the appellant was acquitted of the offence with which it had been charged and its licence also was restored. The mere possibility of the appellant earning considerable amounts in the year under consideration was a pure conjecture on the part of the Income tax Officer and the fact that the appellant indulged in speculation (in Kalai account) could not legitimately lead to the inference that the profit in a single transaction or in a chain of transac tions could exceed the amounts	 involved in the high denomination notes	 this also was a pure conjecture or surmise on the part of the Income tax Officer. As regards the disclosed volume of business in the year 317 under consideration in the Head Office and in branches the Income tax Officer indulged in speculation when he talked of the possibility of the appellant earning a considerable sum as against which it showed a net loss of about Rs. 45	000. The Income tax Officer indicated the probable source or sources from which the appellant could have earned a large amount in the sum of Rs. 2	91	000 but the conclusion which he arrived at in regard to the appellant having earned this large amount during the year and which according to him represented the secreted profits of the appellant in its business was the result of pure conjectures and surmises on his part and had no foundation in fact and was not proved against the appellant on the record of the proceedings. If the conclusion of the Income tax Officer was thus either perverse or vitiated by suspicions	 conjectures or surmises the finding of the Tribunal was equally perverse or vitiated if the Tribunal took count of all these probabilities and without any rhyme or reason and merely by a rule of thumb	 as it were	 came to the conclusion that the possession of 150 high denomination notes of Rs. 1	000 each was satisfactorily explained by the appellant but not that of the balance of 141 high denomination notes of Rs. 1	000 each. The position as it obtained in this case was closely analogous to that which obtained in Messrs. Mehta Parikh & Co. vs The Commissioner of Income tax	 Bombay (1). In that case the assessee had to satisfactorily explain the possession of 61 High Denomination Notes of Rs. 1	000 each and the Tribunal came to the conclusion that the assessee had satisfactorily explained the possession of 31 of these notes and not of the remaining 30. The High Court had treated the finding of the Tribunal as a finding of fact. It was held by this Court that the entries in cash book and the statements made in the affidavit in support of the explanation	 which were binding on the Revenue and could not be questioned	 clearly showed that it was quite within the range of possibility that the assessee had in their possession the 61 High denomination notes on the relevant date and their explanation in that (1) ; 318 behalf could not be assailed by a purely imaginary Calculation of the nature made by the income tax officer or the Appellate Assistant Commissioner. It further held that the Tribunal made a wrong approach and while accepting the assessee 's explanation with regard to 31 of the notes	 it had absolutely no reason to exclude the rest as not covered by it in the absence of any evidence to show that the excluded notes were profits earned by the assessee from undisclosed sources. The assessee having given a reasonable explanation the Tribunal could not	 by applying a rule of thumb discard it so far as the rest were concerned and act on mere surmise. In arriving at its decision this Court referred to the case of Chunilal Ticamchand Coal Co. Ltd. vs Commissioner of Income tax	 Bihar and Orissa (1) and stated that the case before it should also have been similarly decided by the High Court in favour of the assessee. A decision of the Allahabad High Court reported in in Kanpur Steel Co. Ltd. vs Commissioner of Incometax	 Uttar Pradesh( ') may also be noted in this context. The assessee there encashed 32 currency notes of Rs. 1	000 each on January 12	 1946	 when the High Denomination Bank Notes (Demonetisation) Ordinance	 1946	 came into force	 and when the Income tax Officer called upon it to explain how these currency notes came into its possession	 the assessee claimed that the notes represented part of its cash balance which	 on that date	 stood at Rs. 34	313. The Income tax Officer rejected the explanation and assessed the amount of Rs. 32	000 represented by these currency notes as suppressed income of the assessee from some undisclosed source. The Tribunal took into account the statement of sales relating to a few days preceding the date of encashment and found that the highest amount of any one single transaction was only Rs. 399. The Tribunal also referred to another statement of the daily cash balances of the assessee from December 20	 1945	 to January 12	 1946	 and noted that the cash balance of the assessee was steadily increasing. The Tribunal	 however	 estimated that high denomination (1) (2) 319 currency notes to the value of Rs. 7	000 only could form part of the cash balance of the assessee. It therefore upheld the assessment to the extent of Rs. 25	000. On a reference to the High Court it was held (1) that the burden of proof lay upon the Department to prove that the sum of Rs. 32	000 represented suppressed income of the assessee from undisclosed sources	 and the burden was not on the assessee to prove how it had received these high denomination currency notes; for	 until the Demonetisation Ordinance came into force high denomination currency notes could be used as freely as notes of any lower denomination and no one had any idea that it should be necessary for him to explain the possession of high denomination currency notes	 the assessee had naturally not kept any statement regarding the receipt of these currency notes	 and it was for the first time on January 12	 1946	 when the Ordinance came into force	 that it became necessary for the assessee to explain its possession of these currency notes and (ii) that the explanation given by the assessee that the notes formed part of the cash balance of Rs. 34	000 and odd was fairly satisfactory and was not found by the Tribunal to be false; the statement of sales was hardly relevant to the question; the Department	 in relying on the entries relating to the bills of each day committed an error and no inference should have been drawn from them; that any one single transaction did not exceed Rs. 399 did not preclude the possibility of payment in high denomination notes for such transaction; therefore	 the Tribunal rejected the explanation of the assessee on surmises	 and there was no material for the Tribunal to hold that the sum of Rs. 25	000 represented suppressed income of the assessee from undisclosed sources. In arriving at the above decision the High Court referred to the cases of Mehta Parikh & Co. vs Commissioner of Income tax	 Bombay (1) and Chunilal Ticamchand Coal Co.	 Ltd. vs Commissioner of Incometax	 Bihar and Orissa (2). It is	 therefore	 clear that the Tribunal in arriving at the conclusion it did in the present case indulged in (1) [1956) S.C	R. 626	 (2) 320 suspicions	 conjectures and surmises and acted without any evidence or upon a view of the facts which could not reasonably be entertained or the facts found were such that no person acting judicially and properly instructed as to the relevant law could have found	 or the finding was	 in other words	 perverse and this Court is entitled to interfere. We are therefore of opinion that the High Court was clearly in error in answering the referred question in the affirmative. The proper answer should have been in the negative having regard to all the circumstances of the case which we have adverted to above. The appeals will accordingly be	 allowed	 the judgment and order passed by the High Court will be set aside and the referred question will be answered in the negative. The appellant will be entitled to its costs of the reference in the High Court and of these appeals in this Court as against the respondent. Appeals allowed.

The appellant a Hindu undivided family carrying on business in grain kept its books of account according to the mercantile system and maintained in its cash books two accounts: one showing the cash balances from day to day and the other known as " Almirah account " wherein were kept large balances which were not required for the day to day working of the business. On January 12	 1946	 on which date the High Denomination Bank Notes (Deinonetisation) Ordinance	 1946	 was promulgated	 the cash balances of the appellant were RS. 29	284 in its Rokar and Rs. 2	81	397 in the Almirah account. For the assessment year 1946 47 the appellant filed its Income tax Return showing a loss of Rs. 46	4I5 in the business. The Income tax Officer	 in the course of the assessment	 noticed that the appellant encashed high denomination notes of the value of RS. 2	g1	000 on January 19	 1946	 and the explanation given by the appellant was that these notes formed part of its cash balances including cash balance in the Almirali account	 but it was rejected by the Income tax Officer relying on the following circumstances: (1) that the appellant 's food grains licence had been cancelled for the accounting year for its failure to keep proper stock accounts	 (2) that the appellant was prosecuted under the Defence of India Rules but had been acquitted having been given the benefit of doubt	 (3) that the appellant was a speculator	 and as such could easily have earned amounts far in excess of the value of the high denomination notes encashed	 (4) that notwithstanding the fact that the period was very favourable to the food grains dealers the appellant had declared a loss for the assessment year I944 45 UP to 1946 47	 though it had the benefit of a large capital on hand	 and (5) that the appellant was one of the premier grain merchants of Sahibganj	 a place which had gained sufficient notoriety for smuggling foodgrains. The Income tax Officer came to the conclusion that the appellant had all these probable sources from which it could have earned the sum of Rs. 2	91	000	 and accordingly he treated the sum as the appellant 's secreted profits from business and included it in its total income. The Appellate Tribunal accepted the account books produced by the appellant 302 and examined the cash book and taking into consideration all the circumstances which had been adverted to by the Income tax Officer took the view that the appellant might be expected to have possessed as part of its business cash balance of at least Rs. 1	50	000 in the shape of high denomination notes on January 12	 1946	 when the Ordinance was promulgated	 but that the nature of the source from which the appellant derived the remaining 14i high denomination notes of Rs. 1	000 each remained unexplained to its satisfaction. It accordingly reduced the amount considered as the secreted profits from Rs. 2	91	000 to Rs. 1	41	000. On reference	 the High Court held that the finding arrived at by the Tribunal was one of fact and that it could not be urged that it was based on no evidence. On appeal to the Supreme Court it was contended for the appellant that the finding arrived at by the authorities concerned	 though it be one of fact	 was vitiated by reason of the authorities indulging in conjectures	 suspicions and surmises and basing the same on no material whatever which would go to support the same	 and that	 in any case	 it was a preverse one which a reasonable body of men could not have arrived at on the material on the record. Held	 that the Tribunal had been influenced by the suspicions	 conjectures and surmises which were freely indulged in by the Income tax Officer	 and had arrived at its conclusion	 as it were by a rule of thumb	 without any proper materials before it and that its finding could not be sustained; that having accepted the appellant 's books of account it was not open to the Tribunal to accept the explanation of the appellant in part as to Rs. 1	50	000 and reject the same in regard to the sum of Rs. 1	41	000. Messrs. Mehia Parikh & Co. vs The Commissioner of Income tax	 Bombay; 	 and Kanpur Steel Co. Ltd. vs Commissioner of Income tax	 Uttar Pradesh	 [1957] 32 I.T.R. 56	 relied on. Where a Tribunal has acted without any evidence or upon a view of the facts which could not reasonably be entertained or the facts found were such that no person acting judicially and properly instructed as to the relevant law could have found	 the court is entitled to interfere. Dhirajlal Girdharilal vs Commissioner of Income tax	 Bombay	 ; Dhakeswari Cotton Mills Ltd. vs Commissioner of Income tax	 West Bengal	 [1955] i S.C.R. 941; Messrs. Mehta Parikk and Co. vs The Commisioner of Income tax	 Bombay	 ; and Meenakshi Mills	 Madurai vs Commissioner of rncome tax	 Madras	 [19561 S.C.R. 69i	 followed.