Tribunal held that the assessee was following the mercantile system of accounting consistently. The foreign exchange loss was due to the reinstatement of the accounts at the end of the financial year as well as loss incurred on account of exchange fluctuation on repayment of borrowings similar to the interest expenditure and it was to be allowed as revenue expenditure under section 37 of the Act, according to the accounting standard.( AY.2013-14, 2014-15)