<s>[INST] What changes were made by the Constitution (Twenty-fifth Amendment) Act, 1971? [/INST] The Constitution (Twenty-fifth Amendment) Act, 1971 made changes to the Indian Constitution by introducing Article 32A. This new article provided for a Public Service Commission for each Union Territory, in addition to the existing All India Services and State Public Service Commissions. The amendment came into effect from April 20, 1972. </s>