Transaction value determination clarifies allowable deductions and inclusions affecting assessable value under new valuation rules. The circular clarifies that transaction value is determined for each removal, with 'greatest aggregate quantity' referring to the largest quantity of identical goods sold on a particular day. Deductions from transaction value are limited to amounts actually paid or payable by the assessee; transportation costs owned by the manufacturer may be deducted if separately shown and supported by costing, return-trip charges are not deductible unless recovered, and transit insurance may be included in transport cost. Packing, buyer-borne advertisement or dealer-incurred after-sales charges that are incurred on behalf of the manufacturer are added to assessable value. Captive consumption, job-work, related-party sales, samples and removals with CENVAT consequences are addressed by specific Rules as set out.