(3)The provisions of this section shall not apply in a case where the computation of income under sub-section (1) or the determination of the allowance for any expense or interest under that sub-section, or the determination of any cost or expense allocated or apportioned, or, as the case may be, contributed under sub-section (2), has the effect of reducing the income chargeable to tax or increasing the loss, as the case may be, computed on the basis of entries made in the books of account in respect of the previous year in which the international transaction was entered into.]
