S. 92C : Transfer pricing-Arm’s length price-Comparables-Functionally different from assessee to be excluded from list of comparables-Transactional net margin method-Foreign exchange fluctuation gains on re-statement of outstanding debtors as on balance-sheet date-Part of operating revenue-Assessee within ± 5 Per Cent. tolerance range-No transfer pricing adjustment called for. [S.92C(2)]