Hi,
Pls see Sec 43A
43A. Notwithstanding anything contained in any other provision of this Act, where an assessee has acquired any asset in any previous year from a country outside India for the purposes of his business or profession and, in consequence of a change in the rate of exchange during any previous year after the acquisition of such asset, there is an increase or reduction in the liability of the assessee as expressed in Indian currency (as compared to the liability existing at the time of acquisition of the asset) at the time of making payment—
(a) towards the whole or a part of the cost of the asset; or
(b) towards repayment of the whole or a part of the moneys borrowed by him from any person, directly or indirectly, in any foreign currency specifically for the purpose of acquiring the asset along with interest, if any,
the amount by which the liability as aforesaid is so increased or reduced during such previous year and which is taken into account at the time of making the payment, irrespective of the method of accounting adopted by the assessee, shall be added to, or, as the case may be, deducted from—
(i) the actual cost of the asset as defined in clause (1) of section 43; or
(ii) the amount of expenditure of a capital nature referred to in clause (iv) of sub-section (1) of section 35; or
(iii) the amount of expenditure of a capital nature referred to in section 35A; or
(iv) the amount of expenditure of a capital nature referred to in clause (ix) of sub-section (1) of section 36; or
(v) the cost of acquisition of a capital asset (not being a capital asset referred to in section 50) for the purposes of section 48,
and the amount arrived at after such addition or deduction shall be taken to be the actual cost of the asset or the amount of expenditure of a capital nature or, as the case may be, the cost of acquisition of the capital asset as aforesaid: