2: Definitions:

In this Act, unless the context otherwise requires-

(51) "Turnover of Purchases" with its cognate expression means the aggregate of the amounts of purchase price paid or payable by a dealer in respect of any purchase of goods made by or through him whether for cash or deferred payment, after deducting the amount, if any, refunded to the dealer by the seller in respect of any goods returned to such seller within such period as may be prescribed;