The Constitution (Twenty-seventh Amendment) Act, 1971. Date on which the Act came into force:– (i) Ss. 1 and 3…..30-12-1971 (as per s. 1 (2) of the Act). (ii) Ss. 2, 4 and 5 15-2-1972 [GSR 73(E), dated 14-2-1972]. - Legalspace