Section 20(4)(a) in The Banking Regulation Act, 1949
(a)"loans or advance" shall not include any transaction which the Reserve Bank may, having regard to the nature of the transaction, the period within which, and the manner and circumstances in which, any amount due on account of the transaction is likely to be realised, the interest of the depositors and other relevant considerations, specify by general or special order as not being a loan or advance for the purpose of this section;