Correct Option: D

After publishing a series of books and articlesb arguing that Buddhism was the only way for the Untouchables to gain equality, Ambedkar publicly converted on October 14, 1956, at Deekshabhoomi, Nagpur. He took the three refuges and the Five Precepts from a Buddhist monk, Bhadant U Chandramani, in the traditional manner, and in his turn administered them to the 600,000 of his followers who were present. After receiving ordination, Ambedkar gave dhamma diksha to his followers. The ceremony included 22 vows given to all new converts after Three Jewels and Five Precepts. On 16 October, 1956, Ambedkar performed another mass religious conversion ceremony at Chanda.