26 November: Indian Constitution Day 2021

Constitution Day, also known as National Law Day, is observed annually on 26 November to commemorate the adoption of the Constitution of India.
The Constituent Assembly adopted the Constitution of India on 26 November, 1949, and it came into force on 26 January 1950, which is celebrated in the country as Republic Day.
Dr. B.R. Ambedkar, who was the Chairman of the Constitution drafting committee.