Indian Constitution was adopted on November 26th 1949 and came into force on January 26th 1950. Its preamble reads > 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. Some of the important chapters are - Fundamental Rights - Fundamental Duties