on 18 June 1951 made an amendment and Added special provision for the advancement of any socially and educationally backward classes or for the Scheduled Castes and the Scheduled Tribes. To fully secure the constitutional validity of zamindari abolition laws and to place reasonable restriction on freedom of speech. A new constitutional device, called Schedule 9 introduced to protect laws that are contrary to the Constitutionally guaranteed fundamental rights. These laws encroach upon property rights, freedom of speech and equality before law

The First Amendment of the Constitution of India, enacted in 1951, made several changes to the Fundamental Rights provisions of the constitution. It provided against abuse of freedom of speech and expression, validation of zamindari abolition laws, and clarified that the right to equality does not bar the enactment of laws which provide special consideration for weaker sections of society.

The formal title of the amendment is the Constitution (First Amendment) Act, 1951. It was moved by the then Prime Minister of India, Jawaharlal Nehru, on 10 May 1951 and enacted by Parliament on 18 June 1951