Constitution (42nd Amendment) Act, 1976

Enacted during the Emergency, the Constitution (Forty-second Amendment) Act, 1976 made wide-ranging changes to the constitutional structure. Among them, it added the words 'Socialist' and 'Secular' and the phrase 'unity and integrity of the Nation' to the Preamble, introduced Fundamental Duties and altered the balance among Parliament, the judiciary, Fundamental Rights and Directive Principles. Several of its provisions were later repealed or modified.