Summarize the following court judgment. Appeals Nos. 1594 and 1595 of 1968. Appeals from the judgment and order dated August 29	 1963 of the Calcutta High Court in Income Tax Reference No. 38 of 1960. Sachin Chaudhuri	 T. A. Ramachandran and D. N. Gupta	 the appellant (in both the appeals). D. Narsaraju	 section K. Aiyar	 R. N. Sachthey and B. D. Sharma for the respondent (in both the appeals). The Judgment of the Court was delivered by Shah	 J. In respect of assessment years 1949 50 and 1950 51 the Income tax Appellate Tribunal referred five questions to the High Court of Calcutta under section 66(1) of the Indian Income tax Act	 1922. Three of those questions which are canvassed in these appeals need be set out : Assessment year 1949 50 "(1) Whether on the facts and in the circumstances of the case	 the sum of Rs. 51	550/ was A profit in the nature of revenue and therefore liable to tax under the Indian Income tax Act ?" Assessment year 1950 51 "(3) Whether	 on the facts and in the circumstances of the case	 the sum of Rs. 8	756/ was a profit 798 in the nature of revenue 'and was subject to tax under the Indian Income tax Act ? (4) Whether	 on the facts and in the circumstances of the case	 the loss of Rs. 34	891/ was allowable as a deduction against the business income of the assessee for the assessment year 1950 51?" The appellant a limited Company incorporated under the Indian Companies Act	 1913 carries on business as managing agents	 dealers in shares and stocks	 stores and spare parts of machinery and acts as insurance agents and manufacturers of carbon dioxide. It also works certain coal mines. The Company obtained a prospecting licence from the State of Korea for the Chirimiri Colliery in 1944 and after prospecting for coal sold the colliery	 and thereby earned a profit of Rs. 51	550 in the account year 1948 49 and Rs. 8	756 in the account year 1949 50. The Income tax Officer brought the profits arising out of the sale of the colliery to tax as business profits. The order was confirmed in appeal by the Appellate Assistant Commissioner and the Income tax Appellate Tribunal. The Company conducted a Dry Ice Factory at Lahore. The factory was sold in September 1948 to the Indo Pakistan Corporation Ltd. The purchaser took over the factory on October 1	 1948	 but the price was finally settled in December	 1949. By the sale the Company suffered a loss of Rs. 34	891. The Company claimed to deduct this loss from its income assessable to tax in the assessment year 1950 51. The Income tax Officer disallowed	 the claim. The Appellate Assistant Commissioner agreed with that view	 and the Tribunal confirmed the order. In answering questions (1) & (3) the High Court observed "The Chirimiri Colliery was sold after prospecting and proving coal. The sale in such 'a case was a part of the trading activities of the assessee and such activity could be gathered from the surrounding circum stances as also from the manner in which it was sold	 that is	 within a very short time after its acquisition and after it was made fit for obtaining a reasonably higher price at the sale. . The profit thus acquired can not be treated as a capital asset. " In answering question (4) the High Court observed "The loss of Rs. 34	891 sustained by the assessee after the sale of Dry Ice Factory at Lahore in September 1948 cannot be treated as a loss of the business of sale	 inasmuch as the Tribunal found as a fact that the loss not having occurred in the relevant accounting 799 year	 was referable to the transaction of business during a period when the business completely ceased before the commencement of the accounting year. Counsel for the Company urges that prospecting for coal under a licence obtained from the State of Korea was not	 part of the business operations of the Company and that by selling the rights in the mine	 the Company disposed of its assets and made gains of a capital nature. In any event	 it was urged	 this was a single transaction and in the absence of evidence that the Company carried on the business of obtaining prospecting licences and of selling the mines if "coal was proved"	 the profit arising out of sale of the mine which was a capital asset acquired by that transaction was not taxable. Where a person disposes of a part or the whole of his assets the general rule is that the mere change or realisation of an investment does not attract liability to income tax but where such a realisation is an act which in itself is a trading transaction	 profit earned by sale or conversion is taxable : Commissioner of Taxes vs Melbourne Trust Ltd.(1) The cases which illustrate this distinction fall broadly into two categories those where the sales formed part of trading activity	 and	 those in which the sale or realisation was not an act of trading. As observed in Californian Copper Syndicate (Limited and Reduced) vs Harris (Surveyor of Taxes) (2) the test is Is the sum of gain that has been made a mere enhancement of value by realising a security	 or	 is it a gain made in an operation of business in carrying out a scheme for profit making ?" In determining whether the gain is realization of mere en hancement of value or is a gain made in an operation of business in carrying out a scheme for profit making	 do uniform rule ran be evolved. It was observed by this Court in Janki Ram Bahadur Ram vs Commissioner of Income tax(3) : ". . no single fact has decisive significance	 and the question whether a transaction is an adventure in the nature of trade must depend upon the collective effect of all the relevant materials brought on the record. But general criteria indicating that certain facts have dominant significance in the context of other facts have been adopted in the decided cases. if	 for instance	 a transaction is related to the business which is normally carried on by the assessee	 though not directly part of it	 an intention to launch upon an	 adventure in the nature of trade may readily be inferred. (1) 	 1010 (P.C.) (2) 	166. (3) 	 25. 800 A similar inference would arise where a commodity is purchased and sub divided	 altered	 treated or repaired and sold	 or is converted into a different commodity and then sold. Magnitude of the transaction of pur chase	 the nature of the commodity	 subsequent dealings and the manner of disposal may be such that the transaction may be stamped with the character of a trading venture: . " A transaction of sale may in a given case be isolated : in another it may be intimately related to the normal business of the tax payer. In the latter class profit arising from the transaction will probably arise out of the tax payer 's business and will be assessable as business profits. An instructive case of this class is Imperial Tobacco Co. (of Great Britain and Ireland) Ltd. vs Kelly(1). In that case the Company carried on the business of tobacco manufacture	 for which large quantities of tobacco leaf were purchased in the United States	 where the Company maintained a large buying Organisation. To finance the purchases and the expenses of this Organisation the Company bought dollars in the United Kingdom through its bankers who remitted them to the banking accounts of the Company in the United States	 and it was the practice of the Company to accumulate a large holding of dollars each year before the leaf season commenced. The Company never bought dollars for the purpose of resale as a speculation. On the outbreak of war	 in September 1939. the appellant Company	 at the request of the Treasury	 stopped all further purchases of tobacco leaf in the United States	 and	 as a result	 the Company had on hand	 a holding of dollars accumulated between January and August	 1939. On September 30	 1939	 the Company was ordered under the Defence (Finance) Regulations	 1939	 to sell its surplus dollars to the Treasury	 and	 owing to the rise in the rate of exchange	 the sale resulted in a profit to the Company. It was held by the Court of Appeal that the profit was liable to be included as profits of its trade under Sch. D Case 1. The tax payer was not carrying on business in dollars	 but the transactions in dollars were intimately related to their principal business and the profits earned by sale of dollars were treated as profits taxable as business profits. In T. Beynon & Co. Limited V. Ogg (Surveyor of TaxeS(2) the tax payer carrying on business as Coal Merchants	 Ship and Insurance Brokers	 and as sole selling agent for various Colliery Companies	 in which latter capacity it was part of its duty to purchase wagons on behalf of its clients	 bought a large number of wagons on his own account with the intention of reselling them (1) (2) 801 at profit. The contention of the tax payer that the transaction being an isolated one	 the profit was in the nature of a capital profit on the realisation of an investment was negatived. The profits realised in this transaction were held to result from the operation of the Company 's business and properly includable in the computation of the Company 's profits for assessment under Sch. D. In Gloucester Railway Carriage and Wagon Co. Ltd. vs The Commissioners of Inland Revenue(1) the tax payer carried on the business of manufacturing wagons for sale or hire. The tax payer sold some of the wagons which were formerly hired out. The tax payer contended that the profit realized by sale was an isolated transaction resulting in a capital profit. The House of Lords held that the "business was all one '	 namely	 to make profit out of wagons and on that account the profits realized by sale of wagons were taxable. The Tribunal in the present case recorded the following findings : "It is no doubt true that this was a single transaction ' But we were told by the assessee 's counsel that the assessee obtained prospecting licence in the colliery	 developed the colliery and then sold out. What was the purpose of obtaining the prospecting licence has not been told to us. The assessee was carrying on business of coal mining. The prospecting of coal is a part of the coal mining business. Therefore	 in our opinion	 the transaction of prospecting	 developing and selling the colliery is a transaction in the nature of a business. Therefore	 the profit arising from the sale is a profit in the nature of revenue and has been rightly brought to tax. " Our task would have been lightened if the Tribunal had stated the findings in greater detail. Nevertheless the Tribunal has found that the Company was carrying on the business	 of coal mining and prospecting of coal was a part of the coal mining business and on that account the transaction of prospecting	 developing and selling the colliery was a transaction in the nature of a business. On the findings recorded by the Tribunal it follows that the prospecting for	 coal being a part of the coal mining business	 the income was properly regarded as taxable. The answer recorded by the High Court on questions (1) & (3) must be upheld. Turning to the fourth question : the sale transaction of the Dry Ice Factory	 was completed on October 1	 1948	 but the price was finally settled in December 1949. In the settlement	 the Company suffered a loss of Rs. 34	891. The loss was suffered in the (1) 802 business transaction and the only dispute raised before the Tribunal related to the year in which the loss was liable to be taken into account. The Tribunal disallowed the loss in the assessment of income for the year 1950 51. The Tribunal held that the business of the Dry Ice Factory was not carried on in the year of account April 1	 1949 to March 31	 1950	 and on that account the loss was hot admissible as a permissible deduction in computing the taxable income of the Company for the assessment year 1950 51. The High Court agreed with the Tribunal. In our judgment	 the High Court was in error in holding that the loss was not a permissible deduction. Section 24 of the Income tax Act	 1922	 in the relevant year of assessment read as follows : "(1) Where any assessee sustains a loss of profits or gains in any year under any of the heads mentioned in section 6	 he shall be entitled to have the amount of the loss set off against as income	 profits or gains under any other head in that year Provided that (2) Where any assessee sustains a loss of profits or gains in any year	 being a previous year not earlier than the previous year for the assessment for the year ending on the 31st day of March	 1940	 under the head profits of business	 profession or vocation	 and the loss cannot be wholly set off under sub section (1) the portion not so set off shall be carried forward to the following year and set off against the profits or gains	 if any	 of the assessee from the same business	 profession or vocation for that year Provided that By sub section ( 1 ) the loss or profits or gains suffered under any head in any year was liable to be set off against the income	 profits or gains under any other head	 and by sub section (2) where the loss suffered in any business	 profession or vocation could not be wholly set off under sub section ( 1 ) the loss not so set off had to be carried forward to the following year and set off against the profits and gains of the same business in the subsequent years. The Tribunal and the High Court applied sub section (2) of section 24 in computing the taxable income of the Company for the assessment year 1950 51. But in so proceeding	 in our judgment	 they were in error. The business of Dry Ice Factory was sold in October	 1948. We will assume that the Dry Ice Factory was 'a separate business of the Company and was not a part of the other business carried on by the Company. But the price for which the business was sold was settled in December 1949. Until the price was 803 settled	 loss did not accrue or arise to the Company. The loss was suffered in the account year 1949 50 and could be allowed against the income of that year under section 24(1). The assumption that the loss was suffered in the previous year i.e.	 1948 49 was	 in our judgment	 not warranted. The case was plainly governed by sub section (1) of section 24. The answer to the fourth question recorded by the High Court must be discharged. The answers to questions (1) & (3) recorded by the High Court are affirmed. Question (4) Will be answered in the affirmative and in favour of the Company. In view of the divided success	 there will be no order as to costs in this Court. The order as to costs in the High Court is maintained. V.P.S. Appeals allowed in part.

The assessee company was carrying on the business of coal mining and of a Dry Ice Factory	 in addition to various other kinds of business. It obtained a prospecting licence	 and after prospecting for coal sold it within a short time of its acquisition and thereby earned profits in the accoun ting years 1948 49 and 1949 50. It sold the Ice Factory in 1948. Though the purchaser took possession of the ice factory in 1948	 the price was finally settled in December 1949. By that sale the assessee company suffered a loss. The assessee claimed (1) that the 'profits were gains of a capital nature and hence not liable to tax; and (2) that the loss was deductible from its income in the assessment year 1950 51. (1) The department	 Tribunal and High Court held that the profits from the sale of colliery were in the nature of revenue and were liable to tax under the Income Tax Act	 in the two corresponding assessment years	 namely	 1949 50 and 1950 51; and (2) It was held that loss in the ice factory transaction was suffered in the accounting year 1948 49 and assessee 's claim could be sustained only under section 24(2)	 of the Income tax Act	 1922	 but that the subsection was not applicable	 because	 the business ceased completely before the commencement of the following accounting year 1949 50 (assessment year 1950 51). In appeal to this Court	 HELD : (1) Where a person disposes of a part or the whole of his assets the general 'rule is that the mere change or realization of an investment does not attract liability to income tax	 but	 where such a realisation is an act which in itself is a trading transaction	 profit earned by sale or conversion is taxable. In determining whether the gain is realization of a mere enhancement of value (capital gain) or is again made in an operation of business in carrying out a scheme for profit making (revenue) no uniform rule can be evolved. Though a transaction is an isolated one	 it may be intimately related to the normal business of the tax payer. in such a case	 the profit arising from the transaction will be out of the tax payer 's business and will be assessable as business profits. [799 C D. F) 800 B C] Prospecting of coal was a part of the mining business which the assessee was carrying on. Therefore	 the transaction of prospecting	 developing and selling the colliery was one in the nature of business. 797 Hence	 the profit arising from the sale	 though it was an isolated transaction	 was in the nature of revenue and liable to tax. [801 F H] Janki Ram Bahadur Ram vs Commissioner of Income tax	 	 25(S.C.)	 followed. Commissioner of Taxes vs Melbourne Trust Ltd. [1914] A.C. 1001	 1010 (P.C.)	 Californian Copper Syndicate (Limited and Reduced) V. Harris (Surveyor of Taxes) 	 166	 Imperial Tobacco Co. vs Kelly	 	 Beynon & Co. Ltd. vs Ogg (Surveyor of Taxes) and Gloucester Railway Carriage and Wagon Co. Ltd. vs Commissioners of inland Revenue	 	 referred to. (2) By section 24(1) the loss or profits or gains suffered under any head in any year was liable to be set off in that year against the income	 profits or gains under any other head; but by section 24(2) where the loss suffered in any business	 profession or vocation could not be wholly set off under sub section (1) the loss not so set off has to be carried forward to the following year and set off against the profits and gains of the same business in the subsequent year. L802 F G] In the present case	 loss was suffered in the accounting year 1949 50 when the price was settled and not in 1948 49 when the sale took place. Therefore	 under section 24(1) the loss was allowable against the business income of the assessee for the accounting year 1949 50	 that is	 in proceedings for the assessment year 1950 51. [803 A B]