In which year was the 42nd Constitutional Amendment Act passed?

Correct option is B

The correct answer is (b) 1976
 The 42nd Constitutional Amendment Act was passed in 1976.
 The 42nd Amendment Act is also known as the Mini-Constitution because of the enormous number of revisions it has made to the Indian Constitution.
 It was enacted in 1976 during an Emergency period by Indira Gandhi Government.
Some key aspects of the 42nd Constitutional Amendment Act:
 Part IVA, known as the Fundamental Duties, was incorporated into the Constitution through this amendment.
 It tries to curtail the power of the Supreme Court and the High Courts.
 The amendment added three new words, "Socialist," "Secular," and "Integrity," to the Preamble of the Constitution, reflecting the ideals and principles guiding the Indian nation.
Facts to remember:
 The 44th Amendment Act was introduced by the government in 1978 so that it can overturn the provisions of the 42nd Amendment Act of 1976.
 One of the key changes made by the 44th Amendment Act was the restoration of the power of the High Courts under Article 226 to issue writs for purposes other than the enforcement of fundamental rights.
 In Kesavananda Bharati's (1973) case, the Supreme Court held that the Preamble is a part of the Constitution and can be amended but it can't alter the basic features.