The Constituent Assembly adopted the Constitution of India drafted by a committee headed by Dr. B. R. Ambedkar on 26 November 1949. Preamble was enacted on 26 November 1949 along with some other Articles rest of the constitution came into effect from 26 January 1950.

In 1976 the 42nd Amendment changed this to read sovereing, socialist secular, demorratic republic

Preamble to the Constitution of India is a brief intraductory statement that sets out the guiding purpose and principles of the documents and indicates the source from which the document derives its authority meaning, the people.

The Preamble reveals the nature of Indian state: It declares India to be a Sovereign, Socialist, Secular, Democratic and Republican polity. Words Socialist, Secular, Integrity were added by 42nd amendment on the recommendation of Sardar swarn singh committee constituted by the late PM Indira Gandhi.

Liberalism is a political philosophy based on the ideas, freedom and equality. It includes Social, Religious, Political and Economic freedom and International Co-operation.

Indian constitution works on the ideology of Justice, Liberty, Equality and Fraternity.

Dr. Rajendra Prasad served as the Chairman of the Constituent Assembly of India. He played a pivotal role in guiding the assembly members in drafting the Indian Constitution, which came into effect on January 26, 1950. His leadership and consensus-building skills were crucial in shaping the democratic foundation of the newly independent nation.

The Constituent Assembly held its first meeting on Dec.9,1946. The meeting was attended by 211 members. Dr. Sachchidanand Sinha, the oldest one,was elected as the temporary president of the assembly. Later on, Dec.11,1946, Dr. Rajendra Prasad and H.C. Mukherjee were elected as the President and vice-president of the assembly.Sir B N Rau was appointed as the Constitutional Advisor in the assembly.