The Constitution (Twenty-sixth Amendment) Act, 1971
It abolishes Articles 291 and 362 of the Constitution and also inserts a new Article 362A after Article 363. the cumulative effect of these changes is the end of the recognition granted to the former rulers of Indian States and the abolition of Privy Purses.

The Constitution (Twenty-seventh Amendment) Act, 1971
The Act was enacted to implement the decision to establish the Union Territory of Mizoram. It empowered Parliament to create a legislature and Council of Minister for the new territory.

The Constitution (Twenty-eight Amendment) Act, 1972
The amendment deletes Article 314 of the Constitution, whish had given protection to the I.C.S. Officers, condition of service and privileges and inserted a new Article 312A.

The Constitution (Twenty-ninth Amendment) Act, 1972
By the twenty-ninth Amendment Act, 1972 two Kerala Acts dealing with land reforms were included in the 9th Schedule to the Constitution.

The Constitution (Thirtieth Amendment) Act, 1972
By this amendment Article 133 was recast so as to redefine the Civil Appellate Jurisdiction of the Supreme Court. The result of this Amendment is that while any case involving an important question of law can reach the Supreme Court by way of appeal, a case however large the amount involved therein but involving no substantial point of law, would fail to reach the Supreme Court.

The Constitution (Thirty-first Amendment) Act, 1973
By this amendment, the strength of the Lok Sabha was increased from 525 to 545 members. This was done to accommodate the increase in population as revealed by the 1971 Census. Accordingly, Article 81(i)(a) was suitably amended.

The Constitution (Thirty-second Amendment) Act, 1973
The amendment Act was enacted to make few special provisions for the State of Andhra Pradash to satisfy the aspirations of the people of the Telangana region.

The Constitution (Thirty-third Amendment) Act, 1974
It amended Articles 101 and 190. Before this Amendment, the resignation of a member of legislature became effective the moment it was tendered. This position is now changed. A resignation becomes effective only after it has been accepted by the Presiding Officer of the House concerned who may refuse to accept the same if he is satisfied that the resignation is not voluntary or genuine. This precautionary provision appeared to be necessary to avoid the members of Parliament or state legislatures being forced to resign.

The Constitution (Thirty-fourth Amendment) Act, 1974
By this amendment twenty State Acts concerning land ceiling and land tenure reforms were added to the Ninth Schedule to the Constitution.

The Constitution (Thirty-fifth and Thirty-sixth Amendment) Acts, 1974-1975
The 35th Amendment Act introduced and innovation in the Indian Constitution by conferring on Sikkim the status of an associate in the Indian Union. This was however, a short-lined experiment. The people of Sikkim desired to be and integral part of India. Accordingly, the Constitution Thirty-sixth Amendment Act was enacted in 1975 to confer full-fledged statehood on Sikkim.

The Constitution (Thirty-seventh Amendment) Act, 1975
The Amendment upgraded the status of Arunachal Pradesh as a Union Territory. Articles 239A and 240 were amended so as to authorize Parliament to create for Arunachal Pradesh a Legislature and Council of Ministers.

The Constitution (Thirty-eight Amendment) Act, 1975
This Amendment Act was enacted during the emergency to make certain modification in the emergency provisions. The Presidential ‘satisfaction’ to issue a proclamation was declared to be final and conclusive. A classificatory clause was added to Article 356(1) so as to make Presidential ‘satisfaction’ to issue a proclamation there under as ‘final and conclusive’ which shall not be questioned in any court on any ground.

This Amendment also declared that the ‘satisfaction’ of the president and a State Governor to issue ordinances would be ‘final and conclusive’ and shall not be questioned in any court on any ground’.

The Constitution (Thirty-ninth) Amendment) Act, 1975
The voiding of the election the Lok Sabha of PM Indira Gandhi by the Allahabad High Court in 1975 on the pertion of Raj Narain led to the enactment of the 39th Amendment Act, 1975. it introduced changes in the method deciding election disputes relating to the four high official of the state, viz. President, Vice-President, Prime Minister and the Speaker. Under the new Article 71(2), Parliament by the law was to establish some ‘authority’ or ‘body’ for deciding such disputes, and its decisions have not be challengeable in any court.

The Constitution (Fortieth Amendment) Act, 1976
The Amendment Act extended immunity to 64 Central and State statues by including them in the IX Schedule. These statues pertained to lad reform, Urban Ceiling and prevention of publication of objectionable matter.

The Constitution (Forty-first Amendment) Act, 1976
The Constitution Forty-first Amendment Act, 1976 raised the age of retirement of the chairman and members of state public service Commissions from 60 to 62.

The Constitution (Forty-second Amendment) Act, 1976
The 42nd Constitutional Amendment Act brought a number of changes in the Constitution. The Act inter-alia gave preponderance to the Directive Principles of State Policy over the Fundamental Rights. Established the supremacy of Parliament and curtailed the powers of Judiciary. The Act was first of its kind. Is was the most comprehensive Act and touched almost all the sensitive areas of the Constitution. The Amendment was meant to enhance enormously the strength of the Government.

The major Amendments made in the Constitution by the 42nd Amendment Act are:

The characterization of India as ‘Sovereign Democratic Republic’ has been changed to ‘Sovereign Socialist Secular Democratic Republic’. The words ‘Unity of the nation’ have been changed to ‘Unity and integrity of the nation’.

Parliament and state legislatures : The life of the Lok Sabha and State Legislative Assemblies was extended from 5 to 6 years.

Executive : It amended Article 74 to state explicitly that the President shall act in accordance with the advice of the Council of Ministers in discharge of his functions.

Judiciary : The 42nd Amendment Act inserted Article 32A in order to deny the Supreme Court the power to consider the Constitutional validity of a State law. Another new provision. Article 131A, gave the Supreme Court and exclusive jurisdiction to determine question relating to the Constitutional validity of a central law.

Article 144A and Article 128A, the creatures of Constitutional Amendment Act made further innovation the area of judicial review of the Constitutionality of legislation. Under Article 144A the minimum number of judges of the Supreme Court to decide a question of a Constitutional validity of a central or State law was fixed as at least seven and further, this required two-two-thirds majority of the judges sitting declare law as unconstitutional. While the power of the High Court enforce fundamental rights remained untouched, several restrictions were imposed on its power to issue writs ‘for any other purpose’.