Multiple choice When did The Constituion of India came into effect? 26 November 1949 26 January 1950 26 January 1947 26 January 1949 Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Constitution of India was adopted on 26 November 1949, but it officially came into effect on 26 January 1950. This date was chosen to commemorate the Purna Swaraj declaration of 1930.