Section 2(d) in The National Small Savings Fund (Custody and Investment) Rules, 2001
(d)"Small Savings Scheme" means - (i) Post Office Savings Bank Deposits regulated under the Government Savings Banks Act, 1873; (ii) Savings Certificates issued under the Government Savings Certificates Act, 1959; (iii) Public Provident Fund scheme regulated under the Public Provident Fund Act, 1968; and (iv) any other scheme as may be notified by the Central Government from time to time;
