Summarize the following court judgment. Appeal No. 304 of 1958. Appeal from the judgment and order dated September 7	 1956	 of the Bombay High Court in Income tax Reference No. 19 of 1956. C. K. Daphtary	Solicitor General of India	K. N. Rajagopal Sastri and D. Gupta	 for the appellant. N. A. Palkhivala and section N. Andley	 for the respondent. April 28. The Judgment of the Court was delivered by S.K. DAS	 J. This is an appeal on a certificate of fitness granted by the High Court of Bombay	 and the short question for decision is the true scope and effect of the third proviso to section 5 of the Business Profits Tax Act	 1947 (Act No. XXI of 1947)	 hereinafter referred to as the Act. The appellant is the Commissioner of Income tax	 Ahmedabad	 and the respondent is a private limited company under the name and style of Karamchand Premchand Ltd.	 Ahmedabad	 to be called hereafter as the assesses. 729 The relevant facts are these : the assessee held the managing agency of the Ahmedabad Manufacturing and Calico Printing Co. Ltd. It also had a pharmaceutical business in the Baroda State	 which was at the relevant time an Indian State run in the name and style of Sarabhai Chemicals. The assessee 's business in India (we shall use the expression India in this judgment to mean British India as it was then called in contra distinction to an Indian State) showed business profits assessable under the provisions of the Act; but the business carried on in the name and style of Sarabhai Chemicals in Baroda showed a loss in the relevant chargeable accounting periods which were four in number	 namely: (1) April 1	 1946	 to December 31	 1946; (2) January 1	 1947	 to December 31	 1947; (3) January 1	 1948	 to December 31	 1948 ; and (4) January 1	 1949	 to March 31	 1949. The assessee claimed that its assessable income in India should be reduced by the loss suffered by it in its business in Baroda. The Income tax Officer rejected the claim of the assessee and held that the Act did not apply to the business carried on in an Indian State unless profits and gains of that business were received or deemed to have been received in or brought into India. On appeal the Appellate Assistant Commissioner upheld the contention of the assessee and allowed the appeal. The Department went up in appeal to the Appellate Tribunal	 which held that under the relevant proviso to section 5 of the Act	 profits and losses of a business in an Indian State were not to be taken into consideration unless they were received or deemed to have been received in or brought into India. In that view of the matter the Tribunal set aside the order of the Appellate Assistant Commissioner and restored that of the Income tax Officer. The assessee then moved four applications in respect of the four relevant chargeable accounting periods	 and by these applications the assessee required the Tribunal to state a case to the High Court of Bombay on the question of law which arose out of its order. These four applications were consolidated. The Tribunal on being satisfied that a question of law arose out of its order in the four cases numbered as 85	 86	 87 730 and 88 of 1953 54	 referred that question to the Bombay High Court in the following terms: " Whether on the facts and in the circumstances of the case the loss suffered by the assessee in the business of Sarabhai Chemicals should be deducted in computing the business income of the assessee company liable to business profits tax ?" The High Court answered the question in the affirmative and came to the conclusion that the assessee was entitled to deduct the losses incurred by it in its Baroda business and set them off against the profits made in the taxable territories. The appellant then moved the High Court and obtained a certificate of fitness. On that certificate the present appeal has come to us. The main contention on behalf of the appellant is that the High Court came to an erroneous conclusion with regard to the true scope and effect of the third proviso to section 5 of the Act. It is necessary here to refer to some of the provisions of the Act to understand its general scheme. In 1940 the Central Legislature passed the Excess Profits Tax Act	 1940 (Act No. XV of 1940)	 to impose a tax on excess profits arising out of certain businesses. We shall have occasion to refer to some of the provisions of that Act	 in due course. For the purposes of that Act	 the expression " chargeable accounting period " meant (a) any accounting period falling wholly within the term beginning on September 1	 1939	 and ending on March 31	 1946	 and (b) where any accounting period fell partly within and partly without the said term	 such part of that accounting period as fell within the said term. It may be here stated that originally the term was from September 1	 1939	 to March 31	 1941	 but by several annual Finance Acts the term was extended up to March 31	 1946. In 1947 came the Act in which " chargeable accounting period" means: (a) any accounting period falling wholly within the term beginning on April 1	 1946	 and ending on March 31	 1949	 and (b) where any accounting period falls partly within and partly without the said term	 such part 731 of that accounting period as falls within the said term. The Act extended to the whole of India. The word business" is defined in section 2(3) of the Act as including any trade	 commerce or manufacture	 etc.	 the profits of which are chargeable according to the provisions of section 10 of the Indian Income tax Act	 1922. There are two provisoes to this definition clause	 and the second. proviso states that all businesses to which the Act applies carried on by the same person shall be treated as one business for the purposes of the Act. The expression " taxable profits" is defined under section 2(17) of the Act and it means the amount by which the profits during a chargeable accounting period exceed the abatement in respect of that period. What is meant by " abatement" is defined in section 2(1) of the Act. The charging section is section 4 and we may read that section here	 so far as it is relevant for our purpose	 in order to understand the general scheme	 of the tax imposed under the Act. " section 4. Charge of tax Subject to the provisions of this Act	 there ;hall in respect of any business to which this Act applies	 be charged	 levied and paid on the amount of taxable profits during any chargeable accounting period	 a tax (in this Act referred to as " business profits tax") which shall	 in respect of any chargeable accounting period ending on or before the 31st day of March	 1947	 be equal to sixteen and two third per cent	 of the taxable profits	 and in respect of any chargeable accounting period beginning after that date be equal to such percentage of the taxable profits as may be fixed by the annual Finance Act. " Shortly stated	 the scheme is that in respect of any business to which the Act applies	 there shall be charged	 levied and paid a tax called "business profits tax" on the amount of the taxable profits	 which means the amount exceeding the abatement	 during any chargeable accounting period; the tax shall be equal to sixteen and two third per cent. of the taxable profits in respect of the chargeable accounting period ending on or before March 31	 1947	 and in respect of any charge. able accounting period after that date	 the tax shall 732 be equal to such percentage of the taxable profits as may be fixed by the annual Finance Act. Then comes section 5 which is the section dealing with the application of the Act and it is in these terms: section 5. Application of Act This Act shall apply to every business of which any part of the profits made during the chargeable accounting period is chargeable to income tax by virtue of the provisions of sub clause (i) or sub clause (ii) of clause (b) of subsection (1) of section 4 of the Indian Income tax Act	 1922	 or of clause (c) of that sub section: Provided that this Act shall Dot apply to any business the whole of the profits of which accrue or arise without the taxable territories where such business is carried on by or on behalf of a person who is resident but not ordinarily resident in the taxable territories unless the business is controlled in India: Provided further that where the profits of a part only of a business carried on by a person who is not resident in the taxable territories or not ordinarily so resident accrue or arise in the taxable territories or are deemed under the Indian Income tax Act	 1922	 so to accrue or arise	 then except where the business being the business of a person who is resident but not ordinarily resident	 in the taxable territories is controlled in India	 this Act shall apply only to such part of the business and such part shall for all the purposes of this Act be deemed to be a separate business : Provided further that this Act shall not apply to any income	 profits or gains of business accruing or arising within any part of India to which this Act does not extend unless such income	 profits or gains are received in or are brought into the taxable territories in any chargeable accounting period	 or are assessable under section 42 of that Act. " We have read the section as it stands to day. The expression " taxable territories " in the provisoes was substituted for " British India " by the Adaptation of Laws Order	 1950	 and the third proviso originally referred to any income	 profits or gains of business accruing or %rising within "an Indian State"; then 733 the expression " a Part B State " was substituted	 but this was again changed by the Adaptation of Laws (No. 3) Order	 1956	 and the present expression " any part of India to which this Act does not extend " was introduced. For the purposes of this appeal nothing turns upon these changes	 and we may read the third proviso as referring to any income	 profits or gains of a business accruing or arising in an Indian State. Section 6 deals with relief on occurrence of " deficiency of profits " an expression which is defined in section 2(7) of the Act. The rest of the Act deals with matters	 such as issue of notice for assessment	 assessments	 profits escaping assessment	 penalties	 appeal	 etc.	 with which we are not directly concerned in this appeal. Now	 sections 4 and 5 of the Act make it quite clear that the unit of taxation is the business	 that is	 any busi. ness to which the Act applies; and if a person carries on more than one business to all of which the Act applies	 all the businesses carried on by the same person shall be treated as one business for the purposes of the Act. Section 5	 in its substantive part	 states to which business the Act applies and says that the Act applies to every business of which any part of the profits made during the chargeable accounting period is chargeable to income tax by virtue of the provisions of sub cl. (i) or sub cl. (ii) of cl. (b) of sub section (1) of section 4 of the Indian Income tax Act	 1922	 or el. (c) of that sub section. A reference to the aforesaid provisions of the Indian Income tax Act	 1922	 shows at once that in so far as they concern the present assessee section 5 in its substantive part makes the Act applicable to his business whether the profits of the business accrued or arose in India or Baroda ; and this is so in spite of the fact that the Act extended only to India. Indeed	 learned counsel for the appellant has conceded that bad section 5 stood by itself without any of the provisoes	 the Baroda business of the assessee would have come within the wide ambit of section 5 and the Act would be applicable to that business. His contention	 however	 is that the third proviso has the effect of excluding the Baroda business from the pur. view of the Act	 except in so far as the income	 profits or gains of that business are received or deemed to 95 734 be received in or brought into India. On behalf of the assessee the argument is that in its true scope and effect the third proviso has merely the effect of exempting the income	 profits or gains of the Baroda business except when they are received or brought into India	 but the business itself is not excluded from the purview of the Act; the business is still one to which the Act applies under the substantive part of section 5 and as the third proviso exempts income	 profits or gains only	 the losses of the Baroda business can be set off against the profits of the business in India. These are the two main rival contentions which we have to consider in this appeal. Now	 let us examine a little more closely sections 4 and 5 of the Act. We have stated earlier that section 4 is the charging section	 which levies a tax on the amount of taxable profits during any chargeable accounting period	 in respect of any business to which the Act applies. The corresponding section in the Excess Profits Tax Act	 1940	 was also section 4 thereof	 which levied a tax on the amount by which the profits during any chargeable accounting period exceeded the standard profits inrespect of any business to which that Act applied. Under the Excess Profits Tax Act	 1940	 as also under the Act under our consideration	 the unit is the business business to which the Act applies. For the application of the Act we have to go to section 5. We have pointed out that section 5 in its substantive part makes the Act applicable to every business of which any part of the profits is chargeable to income tax by virtue of the provisions of sub cl. (1) or sub cl. (ii) of el. (b) of sub section (1) of section 4 of the Indian Income tax Act	 1922	 and	 thus makes the Act applicable to the Baroda business of the assessee. The question then is does the third proviso to section 5 exclude that business except in so far as the income	 profits or gains of that business are received or deemed to be received in or are brought into the taxable territories in any chargeable accounting period ? If that is the true scope and effect of the third proviso	 then the appellant is entitled to succeed. If	 on the contrary	 the third proviso merely makes the Act inapplicable to income	 profits or gains of the Baroda business unless such income	 profits or gains are 3 received or deemed to be received in or are brought into the taxable territories	 but does not exclude the business from the purview of sections 4 and 5	 then the answer given by the High Court is correct. The High Court has stated that whichever view is taken the third proviso leads to certain difficulties	 and in a case where much can be said on both sides	 the benefit of any ambiguity of language must be given to the assessee. We agree with the High Court that the question is not quite free from difficulty; but on the language of the proviso as it stands	 the answer given by the High Court appears to us to be the correct answer. It is not the case of the appellant that the first and the second provisoes to section 5 apply to the facts of this case. But it is significant to note the phraseology of these two provisoes and contrast them with the third proviso. The first proviso says: " Provided that the Act shall not apply to any business the whole of the profits of which accrue or arise without the taxable territories	 etc. " The language is clear enough to exclude the business referred to therein from the purview of the Act. Similarly	 the second proviso excludes under certain circumstances part of a business and uses appropriate language to give effect to that exclusion. By a legal fiction as it were	 it divides a business into two parts	 one separate from the other	 and makes the Act applicable to one of them only. Unlike the other two provisoes	 the third proviso does not use the language of exclusion in respect of any business. What it takes out of the ambit of the Act is merely the " income	 profits and gains " of a particular business. The language is thus more apt to effectuate an exemption from tax of 	income	 profits or gains" rather than an exclusion of the business from the purview of the Act. On behalf of the appellant it is contended that such a construction results in this anomaly that if the income	 profits or gains are not brought into India	 they escape tax and yet the losses of a business which is outside India are taken into consideration in computing the profits	 etc.	 in India. This	 it is argued	 could not have been the object of the legislature in 736 enacting the third proviso to section 5 of the Act. It is contended that the object was to exclude the business in an Indian State as also the income	 profits or gains thereof	 unless such profits	 etc.	 were received in or brought into India. This argument is not devoid of plausibility and requires careful consideration. We may here refer to the relevant provisions of the Excess Profits Tax Act	 1940. Section 5 of that Act in its substantive part and the first and second provisoes thereto were worded in identical language	 but the third proviso to section 5 of the Excess Profits Tax Act	 1940	 was worded quite differently from the third proviso to section 5 of the Act. The third proviso to section 5 of the Excess Profits Tax Act	 1940	 stated: " Provided further that this Act shall not apply to any business the whole of the profits of which accrue or arise in a Part B State	 and where the profits of a part of a business accrue or arise in a Part B State	 such part shall	 for the purposes of this provision	 be deemed to be a separate business the whole of the profits of which accrue or arise in a Part B State	 and the other part of the business shall	 for all the purposes of this Act	 be deemed to be a separate business." The language used was clearly one of exclusion	 and it said that the Excess Profits Tax Act was not applicable to a business the profits of which accrued or arose in a Part B State. Why then did the legislature use different language in the third proviso to section 5 of the Act? On behalf of the appellant it has been submitted that the change in language is deliberate and the reason for the change is to make the income	 profits or gains of a business accruing in an Indian or Part B State liable to tax when such income	 profits or gains are brought in India while under the third proviso to a. 5 of the Excess Profits Tax Act	 they were not liable to tax even when they were brought into India. On behalf of the assessee	 however	 it has been submitted that the change in language is due to a different reason altogether. The third proviso to section 5 of the Excess Profits Tax Act	 1940	 and section 14(2) (c) (now deleted) of the Indian Income tax Act	 1922	 were enacted at about the same time	 and the broad object of both the 737 provisions was to exclude profits of a business in an Indian or Part B State from charge of tax; but under the Excess Profits Tax Act	 1940	 such profits were not chargeable even if received in or brought into India whereas under section 14(2) (c) of the Indian Income tax Act such profits became chargeable to tax if received in or brought into India. This difference	 learned counsel for the assessee states	 was no doubt done away with by the change in language of the third proviso to section 5 of the Act; but the change in language did something more	 because it assimilated the position under the proviso to that under section 14(2) (c) of the Indian Income tax Act	 namely	 that though profits of a business in an Indian State cannot be taxed unless they are brought into the taxable territories	 yet the losses incurred can be adjusted in computing the profits of the business as a whole. Learned counsel for the assessee has relied on the decision of this Court in Commissioner of Income tax	 Mysore	 Travancore Cochin and Coorg vs Indo Mercantile Bank Ltd. (1) and the decisions of the Bombay High Court in Commissioner of Income tax	 Bombay City vs Murlidhar Mathurawalla Mahajan Association (2 ) and Commissioner of Excess Profits Tax	 Bombay City vs Bhogilal H. Patel	 Bombay (3 ). The first two decisions cited above considered the effect of section 24 (1)	 Indian Income tax Act	 1922	 with special reference to the first proviso thereto (as it stood at the time relevant therein) and its impact on section 10 of the said Act. It was held that sub section (1) of section 24 dealt only with set off of loss under one head against profits under any other head	 and therefore the old first proviso to sub section (1) of section 24 applied and barred the right of set off only where a loss in the Indian State was sought to be set off against Indian profits under any other head; where	 however	 the assessee sought to set off his loss in the Indian State against his Indian profits under the same head	 e. g.	 set off of loss incurred in a business carried on in an Indian State against the profits of the same or another business carried on in India	 the proviso did not apply and the assessee was entitled to such set off under section 10 (1) [1959] Supp. 2 S.C.R. 256. (2) (3) 738 of the Indian Income tax Act. Learned counsel for the assessee has submitted that the same principle applies with regard to the third proviso to section 5 of the Act. Learned counsel has submitted that as under section 10 of the Indian Income tax Act	 different businesses constitute one head and in order to determine what are the profits and gains of a business under section 10 an assessee is entitled to show all his profits and set off against those profits losses incurred by him	 in the same head; so also under section 5 of the Act	 the Baroda business of the assessee is within the ambit of the Act	 though the income	 profits or gains thereof are excluded by the third proviso unless they are received or brought into India. He has pointed out that the position under the Excess Profits Tax Act was different	 as was explained in Bhogilal Patel 's case (1) where the learned Chief Justice said: " This contention of Mr. Kolah is based on the language used in the proviso	 namely	 that 'this Act shall not apply to any business the whole of the profits of which accrue or arise in an Indian State '. Now	 this contention is obviously fallacious	 because the proviso does not say that the Act shall not apply to the profits of a business which accrue or arise in an Indian State. What the proviso says is that the Act shall not apply to any business the whole of the profits of which accrue or arise in an Indian State. The expression "the whole of the profits of which accrue or arise in an Indian State ' is an expression which indicates the nature of the business which is excluded from the purview or ambit of the Act". Now	 the third proviso to section 5 of the Act uses not the phraseology of the Excess Profits Tax Act	 but the very phraseology which according to the learned Chief Justice would have made all the difference. Learned counsel for the assessee has argued	 and we think it has considerable force	 that the legislature had before it the language used in section 14 (2) (e) of the Indian Income tax Act and it knew the effect of those provisions and it used the same language in the third proviso to section 5 of the Act. If the object of the legislature was to exclude the business itself from the ambit (1) 739 of the Act while taxing the profits which were brought into the taxable territories	 then it used language which failed to achieve that object. On behalf of the appellant it has been pointed out that the expression used in the third proviso to section 5 is "Provided further that the Act shall not apply to any income	 profits or gains of a business	 etc. " It is argued that this language	 (namely	 that the Act shall not apply) is apt to exclude from the purview of the Act business the profits of which accrue or arise in an Indian State	 except in so far as such profits are brought into the taxable territories. In support of this argument a reference has been made to section 4 (3) of the Indian Income tax Act as it stood prior to 1939 and reliance is placed on the decisions in Commissioner of Income tax	 Madras vs M. P. T.K. M. M. section M. A. B. Somasundaram Chettiar (1) and" Commissioner of Income tax	 Bombay vs The Provident Investment Co. Ltd.(2). It is true that section 4(3) of the Indian Income tax Act	 as it stood prior to 1939	 said that this Act (meaning the Indian Income tax Act	 1922) shall not apply to certain classes of income "	 and in the two decisions cited it was held that the word " business " meant a business whose profits were being assessed in the year under consideration and there was no justification for deduction of the expenses of a foreign business. We do not	 however	 think that the use of the expression	 " the Act shall not apply "	 is decisive in this case. We have to read the third proviso as a whole and in the context in which it occurs	 in order to find out what it means. So read it is difficult to hold that it has the effect of excluding the Baroda business except in so far as the profits thereof are brought into the taxable territories. What it says in express terms is that the Act shall not apply to any income	 profits or gains of business accruing or arising in an Indian State	 etc. It does not say that the business itself is excluded from the purview of the Act. We have to read and construe the third proviso in the context of the substantive part of section 5 which takes in the Baroda business and the phraseology of the first and second provisoes thereto	 which clearly uses the (1) A. I. R. (2) (1931) 1 L. R. 740 language of excluding the business referred to therein. The third proviso does not use that language and what learned counsel for the appellant is seeking to do is to alter the language of the proviso so as to make it read as though it excluded business the income ' profits or gains of which accrue or arise in an Indian State. The difficulty is that the third proviso does not say so ; on the contrary	 it uses language which merely exempts from tax the income	 profits or gains unless such income	 profits or gains are received in or brought into India. Next	 we have to consider what the expression income	 profits or gains " means. In the context of the third proviso	 it cannot include losses because the latter part of the proviso says " unless such income	 profits or gains are received	 etc.	 into the taxable territories ". Obviously	 losses cannot be brought into the taxable territories except in an accounting sense	 and the expression " income	 profits or gains " in the context cannot include losses. The expression must have the same meaning throughout the proviso	 and cannot have one meaning in the first part and a different meaning in the latter part of the proviso. The appellant cannot therefore say that the third proviso excludes the business altogether	 because it takes away from the ambit of the Act not only income	 profits or gains but also losses of the business referred to therein. On behalf of the appellant it has been argued that though the language of the third proviso to section 5 of the Act is similar to that of section 14(2)(c) of the Indian Income tax Act	 the language of the two provisions is not identical and it is not correct to say that their effect is substantially the same. It is pointed out that the language of section 14(2)(c) was one of exemption only in respect of any income	 profits or gains accruing or arising in an Indian State	 though for purposes of " total income " the Income tax Act applied thereto	 and therefore the normal process of aggregating profits and losses wherever they occurred could be adopted. But says learned counsel for the appellant	 the position is otherwise under the third proviso to section 5 of the Act	 because	 firstly	 it uses the expression	 " the Act 741 shall not apply " and secondly	 there is no question of exempting the profits from tax while including them for the purposes of " total income ". We agree that the complication of excluding the profits from tax while including them for determining " total income " does not arise under the third proviso to section 5 of the Act; but the argument presented is the same as we have dealt with earlier. The argument merely takes us back to the question does the third proviso to B. 5 of the Act merely exempt the income	 profits or gains or does it exclude the business? If it excludes the business	 the appellant is right in saying that the position under the proviso is not the same as under section 14(2)(c) of the Indian Income tax Act. If	 on the contrary	 the proviso merely exempts the income	 profits or gains of the business to which the Act otherwise applies	 then the position is the same as under section 14(2)(c). It is perhaps repetition	 but we may emphasize again that exclusion	 if any	 must be done with reference to business	 which is the unit of taxation. The first and second provisoes to section 5 do that	 but the third proviso does not. Lastly it has been contended that the construction adopted by the High Court is likely to lead to consequences which the legislature manifestly could not have intended. This contention has been pressed in respect of two matters: (a) computation of capital under the rules in Schedule 11 of the Act in a case where the assessee company sustains a loss in an Indian State; and (b) relief for deficiency of profits where the assessee makes profits in an Indian State but sustains a loss in India. As to the first matter	 it has been fully dealt with by the High Court with reference to r. 2A of the Rules in Schedule 11 and it has been rightly pointed out that no difficulty really arise	% by reason of r. 2A. Nor are we satisfied that any real difficulty arises with regard to relief for deficiency of profits when the assessee makes profits in an Indian State but sustains a loss in India. The Act will not apply to such profits unless they are brought into India	 and if they are brought into India. 	 a. 6 will apply with regard to relief on the ground of deficiency of profits. 96 742 It is unnecessary to consider here any hypothetical difficulty which may arise in the application of section 6. The appellant relies on the third proviso to section 5 of the Act in support of the contention that it excludes the Baroda business of the assessee and the losses of that business cannot be set off against the profits of the business in India	 and the appellant can succeed only on establishing that the proviso clearly and without any ambiguity excludes the Baroda business. We agree with the High Court that if there is any ambiguity of language	 the benefit of that ambiguity must be given to the assessee. However	 the conclusion at which we have arrived is that on the language of the proviso as it stands	 it does not exclude the Baroda business of the assessee but exempts only. the income	 profits or gains thereof unless they are received or deemed to be received in or brought into India. Accordingly	 the High Court correctly answered the question of law referred to it. The appeal falls and is dismissed with costs. Appeal dismissed.

The assesses held the managing agency of a limited company in what was then called " British India and had also a pharma 728 ceutical business in the Baroda State which was at the relevant time an Indian State. The business in British India showed profits assessable under the provisions of the Business Profits Tax Act	 1947	 but the business carried on in Baroda resulted in a loss	 in the relevant chargeable accounting periods between 1946 and 1949. Before the Income tax authorities the assessee claimed that the loss suffered by it in its business in Baroda should be deducted in computing its business income liable to business profits tax	 but this claim was rejected on the ground that though under section 5 Of the Act	 if it stood by itself without any of the provisos	 the Act would be applicable to the Baroda business	 the third proviso had the effect of excluding that business from the purview of the Act	 except in so far as the income	 profits or gains of the business were received or deemed to be received in or brought into British India: Held	 that the effect of the third proviso to section 5 of the Business Profits Tax Act 1947	 was merely to exempt the income	 profits and gains of the Baroda business except when they were received or brought into British India	 but the business itself was one to which the Act was applicable under the substantive part Of section 5. Consequently	 the losses of the business could be set off against the profits of the business in British India. The relevant provisions of the Act are set out in the judg ment.