The Constituent Assembly, which came into existence on 11th of December 1946, had 145 meetings and framed a draft constitution. During these discussions, the various laws proposed by the British Government in 1909, 1919 and 1935, the British Parliamentary system, the American Bill of Rights, the Social Directive Policies of Ireland were studied and some parts of those were written in the Constitution. Finally, the Indian Constitution was approved on 26th of November, 1949 and came into effect on 26th of January, 1950. This day (January 26) is celebrated as the 'Republic Day' in India.