(2) Every assessee, being a company, shall, for the purposes of this section prepare its profit and loss account for the relevant previous year in accordance with the provisions of Parts II and III of Schedule VI to the Companies Act, 1956 (1 of 1956) :

Provided that while preparing profit and loss account, the depreciation shall be calculated on the same method and rates which have been adopted for calculating the depreciation for the purpose of preparing the profit and loss account laid before the company at its annual general meeting in accordance with the provisions of section 210 of the Companies Act, 1956 (1 of 1956) :

Provided further that where a company has adopted or adopts the financial year under the Companies Act, 1956 (1 of 1956), which is different from the previous year under the Act, the method and rates for calculation of depreciation shall correspond to the method and rates which have been adopted for calculating the depreciation for such financial year or part of such financial year falling within the relevant previous year.

Explanation.—For the purposes of this section, "book profit" means the net profit as shown in the profit and loss account for the relevant previous year prepared under sub-section (2), as increased by—

(a)  the amount of income-tax paid or payable, and the provision therefor; or

(b)  the amounts carried to any reserves by whatever name called; or

(c)  the amount or amounts set aside to provisions made for meeting liabilities, other than ascertained liabilities; or

(d)  the amount by way of provision for losses of subsidiary companies; or

(e)  the amount or amounts of dividends paid or proposed; or

(f)  the amount or amounts of expenditure relatable to any income to which any of the provisions of Chapter III applies;

(g)  the amount or amounts set aside as provision for diminution in the value of any asset,

if any amount referred to in clauses (a) to (g) is debited to the profit and loss account, and as reduced by,—

 (i)  the amount withdrawn from any reserves or provisions if any such amount is credited to the profit and loss account :

Provided that, where this section is applicable to an assessee in any previous year (including the relevant previous year), the amount withdrawn from reserves created or provisions made in a previous year relevant to the assessment year commencing on or after the 1st day of April, 1997 but ending before the 1st day of April, 2001 shall not be reduced from the book profit unless the book profit of such year has been increased by those reserves or provisions (out of which the said amount was withdrawn) under this Explanation; or

(ii)  the amount of income to which any of the provisions of Chapter III applies, if any such amount is credited to the profit and loss account; or

(iii) the amount of loss brought forward or unabsorbed depreciation, whichever is less as per books of account.

Explanation.—For the purposes of this clause,—

 (a)  the loss shall not include depreciation;

 (b)  the provisions of this clause shall not apply if the amount of loss brought forward or unabsorbed depreciation is nil; or

(iv) the amount of profits derived by an industrial undertaking from the business of generation or generation and distribution of power; or

(v) the amount of profits derived by an industrial undertaking located in an industrially backward State or district as referred to in sub-section (4) and sub-section (5) of section 80-IB, for the assessment years such industrial undertaking is eligible to claim a deduction of hundred per cent of the profits and gains under sub-section (4) or sub-section (5) of section 80-IB; or

(vi) the amount of profits derived by an industrial undertaking from the business of developing, maintaining and operating any infrastructure facility as defined in the Explanation to sub-section (4) of section 80-IA and subject to fulfilling the conditions laid down in that sub-section; or

(vii) the amount of profits of sick industrial company for the assessment year commencing from the assessment year relevant to the previous year in which the said company has become a sick industrial company under sub-section (1) of section 17 of the Sick Industrial Companies (Special Provisions) Act, 1985 (1 of 1986) and ending with the assessment year during which the entire net worth of such company becomes equal to or exceeds the accumulated losses.

Explanation.—For the purposes of this clause, "net worth" shall have the meaning assigned to it in clause (ga) of sub-section (1) of section 3 of the Sick Industrial Companies (Special Provisions) Act, 1985 (1 of 1986); or

(viii) the amount of profits eligible for deduction under section 80HHC, computed under clause (a), (b) or (c) of sub-section (3) or sub-section (3A), as the case may be, of that section, and subject to the conditions specified in sub-sections (4) and (4A) of that section;

(ix)  the amount of profits eligible for deduction under section 80HHE, computed under sub-section (3) of that section.

(3) Nothing contained in sub-section (1) shall affect the determination of the amounts in relation to the relevant previous year to be carried forward to the subsequent year or years under the provisions of sub-section (2) of section 32 or sub-section (3) of section 32A or clause (ii) of sub-section (1) of section 72 or section 73 or section 74 or sub-section (3) of section 74A.

(4) Save as otherwise provided in this section, all other provisions of this Act shall apply to every assessee, being a company, mentioned in this section.