If the international transaction of exports of goods which has been benchmarked on TNMM basis is duly accepted by the TPO, making an adjustment for interest on excess credit allowed on sales to AEs will vitiate the picture, inasmuch as what has already been factored in the TNMM analysis, by taking operating profit figure which incorporate financial impact of the excess credit period allowed, will be adjusted again separately as well because the interest levy for late realization of debtors is inextricably connected with the sales and is also part of operating income. When such an interest is includible in operating income and the operating income itself has been accepted as reasonable under the TNMM, there cannot be an occasion to make adjustment for notional interest on delayed realization of debtors