December 6, 2021 marks the 65th death anniversary of Dr Ambedkar. Dr Bhimrao Ramji Ambedkar was the chief architect of the Indian Constitution. On December 6, 1956, Dr BR Ambedkar died in his sleep. Every year, this day is observed as the Mahaparinirvana Diwas. Dr Ambedkar belonged to the Mahar caste, considered untouchable in Hinduism. Watch the video to know more about him.