Section 45QB(3) in The Reserve Bank of India Act, 1934
(3)Where the nominee is a minor, it shall be lawful for the depositor making the nomination to appoint, in the manner prescribed by rules made by the Central Government under section 45ZA of the Banking Regulation Act, 1949 (10 of 1949), any person to receive the amount of deposit in the event of his death during the minority of the nominee.