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 . Ambedkar was a prolific student , earning doctorates in economics from both Columbia University and the London School of Economics , and gained a reputation as a scholar for his research in law , economics and political science . 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 .
B. R. Ambedkar was involved in Indian politics.