premise: B. R. Ambedkar was an Indian politician.
hypothesis: 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 and the principal architect of the Constitution of India . In his early career he was an economist , professor , and lawyer . His later life was marked by his political activities ; he became involved in campaigning and negotiations for India 's independence , publishing journals , advocating political rights and social freedom for Dalits , and contributing significantly to the establishment of the state of India .