BabaSaheb Ambedkar

Bhimrao Ramji Ambedkar ([bʱiːmraːw raːmdʑiː aːmbeːɽkər]; 14 April 1891 – 6 December 1956), popularly also known as Babasaheb, was an Indian jurist, politician, philosopher, anthropologist, historian and economist. A revivalist for Buddhism in India, he inspired the Modernist Buddhist Movement in Maharashtra which is spreading all across India is also called Dalit Buddhist movement. As independent India's first law minister, he was principal architect of Constitution of India. Barack Obama referred to Dr. Ambedkar as a founding father[3] of modern India during his address speech in Indian Parliament.[4] The poll conducted by CNN-IBN titled "The Greatest Indian since Gandhi" resulted in Ambedkar being voted above all.
Born into a poor Mahar Dalit family, Ambedkar campaigned against social discrimination, the Hindu caste system. He converted to Buddhism and is also credited with providing a spark for the transformation of hundreds of thousands of Dalits or untouchables to Theravada Buddhism. Ambedkar was posthumously awarded the Bharat Ratna, India's highest civilian award, in 1990.[5]
Overcoming numerous social and financial obstacles, Ambedkar became one of the first Dalits to obtain a college education in India. Eventually earning a law degree and doctorates for his study and research in law, economics and political science from Columbia University and the London School of Economics, Ambedkar gained a reputation as a scholar and practised law for a few years, later campaigning by publishing journals advocating political rights and social freedom for India's untouchables.