Notwithstanding anything contained in section 45 of the Indian Contract Act, 1872 (9 of 1872) and subject to the provisions of sections 7 and 10,−
(a) when a Government security is held by two or more persons jointly, and either or any of them dies, the title to the Government security shall vest in the survivor or survivors of those persons; and
(b) when a Government security is payable to two or more persons severally and either or any of them dies, the Government security shall be payable to the survivor or survivors of those persons or to the representative of the deceased or to any one of them: