Preamble:

WE, THE PEOPLE OF INDIA, having solemnly resolved to constitute India into a SOVEREIGN SOCIALIST SECULAR DEMOCRATIC REPUBLIC and to secure to all its citizens:
JUSTICE, social, economic and political;
LIBERTY, of thought, expression, belief, faith and worship;
EQUALITY of status and of opportunity;
and to promote among them all;
FRATERNITY assuring the dignity of the individual and the unity and integrity of the Nation;
IN OUR CONSTITUENT ASSEMBLY this twenty-sixth day of November, 1949, DO HEREBY ADOPT, ENACT AND GIVE TO OURSELVES THIS CONSTITUTION.

42nd amendment act 1976 amended the preamble and added the words Socialist, Secular and Integrity to the preamble.