Multiple choice From which date did the Constitution of India come in to force? 26 January, 1950 15 August, 1947 20 January, 1950 26 January, 1947 Reveal answer Fill a bubble to check yourself A Correct answer Explanation The Constitution of India came into force on 26 January 1950, celebrated as Republic Day. This date marks when India became a Sovereign Democratic Republic, replacing the Government of India Act (1935) as the country's governing document.