Section 2(1)(b) in Indian Stamp (Collection of Stamp-Duty through Stock Exchanges, Clearing Corporations and Depositories) Rules, 2019
(b)"buyer" means, -(i)the person purchasing securities; or(ii)the person buying the base currency (the first currency appearing in a currency pair quotation) in the forward leg; or(iii)the person paying the fixed rate in a fixed-floating swap instrument; or(iv)any one of the contracting persons in a floating-floating swap instrument; or(v)borrower of repo on corporate bonds;