(3)Without prejudice to the powers conferred on the Authority by sub-section (5) of section 27A nothing contained in this section shall be deemed to require any insurer to realise any investment made in conformity with the provisions of sub-section (1) of section 27 after the commencement of the Insurance (Amendment) Act, 1968 (62 of 1968), which, after the making thereof, has ceased to be an approved investment within the meaning of this section.