The Constitution was enacted by the Constituent Assembly on 26 November 1949, and came into effect on 26 January 1950.[5] The date 26 January was chosen to commemorate the Purna Swaraj declaration of independence of 1930. With its adoption, the Union of India officially became the modern and contemporary Republic of India and it replaced theGovernment of India Act 1935 as the country's fundamental governing document. The Constitution declares India to be asovereign, socialist, secular, democratic republic, assuring its citizens of justice, equality, and liberty, and endeavours to promote fraternity among them.[6] The words "socialist" and "secular" were added to the definition in 1976 by constitutional amendment.[7] India celebrates the adoption of the constitution on 26 January each year as Republic Day.[8]
The Constitution was drafted by the Constituent Assembly, which was elected by the elected members of the provincial assemblies.[11] Dr B.R. Ambedkar,Sanjay Phakey, Jawaharlal Nehru, C. Rajagopalachari, Rajendra Prasad, Sardar Vallabhbhai Patel, Kanaiyalal Munshi, Purushottam Mavalankar,Sandipkumar Patel, Maulana Abul Kalam Azad, Shyama Prasad Mukherjee, Nalini Ranjan Ghosh, and Balwantrai Mehta were some important figures in the Assembly. There were more than 30 members of the scheduled classes. Frank Anthony represented the Anglo-Indian community, and the Parsis were