30th Constitutional Amendment Act, 1972

30^th Constitutional Amendment Act, 1972 (w.e.f. 27.02.1973): It provided that only such appeals can be brought to the supreme Court which involve a substantial question of law. The valuation aspect of Rs. 20,000 for appeals in civil cases to the Supreme Court was abolished.

31th Constitutional Amendment Act, 1973: By this amendment, the seats of the Lok Sabha was increased from 525 to 545 but reduced the representation of UTs in Lok Sabha from 25 to 20.

35^th Constitutional Amendment Act, 1974 (w.e.f. 01.03.1975):  Accorded status of Associate State to Sikkim by ending its protectorate kingdom status which was a novel concept introduced in the Constitution.36^th Constitutional Amendment Act, 1975: Made Sikkim a fully fledged State of the Union of India.

38^th Constitutional Amendment Act, 1975: Clarified that declaration of emergency by the President and promulgation of Ordinance by the President or Governor cannot be challenged in any Court on any ground.

39^th Constitutional Amendment Act, 1975: The disputes or questions regarding elections of President, Vice- President, Prime Minister and Speaker of Lok Sabha were taken out of the purview, of judicial review of the Supreme Court or High Courts.

42^nd Constitutional Amendment Act, 1976 (Mini Constitution) : the 42^nd  Amendment made fundamental changes in the constitutional  structure and it incorporated the words ‘ SOCIALIST,’ ‘SECULAR’ and ‘ INTEGRITY’ in the Preamble. Fundamental Duties were added in part IVA. Directive Principles were given precedence over Fundamental Rights and any law made to this effect by the Parliament was kept beyond the scope of judicial review by the Court. It made the power of Parliament supreme so far as amendment to the Constitution was concerned. It authorized the Supreme Court to transfer certain cases from one high Court to another and redefined the writ jurisdiction of the High Courts. It provided for Administrative Tribunals for speedy justice. It empowered the Centre to deploy armed forces in any Stat to deal with the grave law and order situation. It authorized the President to make Proclamation of Emergency for any part of the country or to whole of India. It makes it obligatory for the President to act on the advice of the Council of Ministers. Tenure of the Lok Sabha and the State Assemblies was increased by one year.