S. 92C : Transfer pricing-Arm’s length price-Avoidance of tax-International transaction-Transactional Net Margin Method-Purchase of raw materials-Adjustment upheld-Adjustments to profit margin by transactional net margin method rejected-Defective material supply-Abnormal cost included in actual cost-further adjustment of cost by re categorisation as income not per principle of transfer pricing-Transfer pricing adjustment deleted.[S.92CA]