Section 45A(a) in The Reserve Bank of India Act, 1934
(a)“banking company’ means a banking company as defined in section 5 of the Banking Regulation Act, 1949 (10 of 1949) and includes the State Bank of India, any subsidiary bank as defined in the State Bank of India (Subsidiary Banks) Act, 1959 (38 of 1959), any corresponding new bank constituted by section 3 of the Banking Companies (Acquisition and Transfer of Undertakings) Act, 1970 (5 of 1970), and any other financial institution notified by the Central Government in this behalf;