<P> Bhimrao Ramji Ambedkar ( 14 April 1891 -- 6 December 1956 ) , popularly known as Baba Saheb , was an Indian jurist , economist , politician and social reformer who inspired the Dalit Buddhist Movement and campaigned against social discrimination against Untouchables ( Dalits ) , while also supporting the rights of women and labour . He was Independent India 's first law minister , the principal architect of the Constitution of India and a founding father of the Republic of India . </P>
who is known as the father of indian constitution
Bhimrao Ramji Ambedkar