S. 92C : Transfer pricing-Arm’s length price-Avoidance of tax-International transaction-Back-Office services-Comparables-Companies functionally different from assessee being routine back-office service provider is to be excluded-Company earning profit in any one of three years can be treated as comparable-Matter remanded for verification of financial statements-Transfer Pricing Officer is bound to follow directions in letter and spirit-Deferred receivables-Interest rate in terms of Libor Plus a mark-up of two hundred basis points to be considered.[S.92CA]