Multiple choice general knowledge Constitution of independent India, came into force on: 15 August, 1947 26 January, 1950 26 January, 1947 14 August, 1950 Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Constitution of India was adopted on 26 November 1949 but came into force on 26 January 1950, which is celebrated as Republic Day. August 15, 1947 marks India's independence from British rule.