The preamble of the Indian Constitution serves as a brief introductory statement of the Constitution that sets out the guiding purpose, principles and philosophy of the Indian Constitution. By 42nd Constitutional Amendment, 1976, it was amended which determined to constitute India into a Sovereign, Socialist, Secular and Democratic Republic. It secures justice, liberty, equality to all citizens of India and promotes fraternity amongst the people.
The idea of the following things can be given by the Preamble which are:
1. Source of the Constitution
2. Nature of Indian State
3. A statement of its objectives
4. Date of its adoption