Bhimrao Ramji Ambedkar (1891–1956), known as Babasaheb, was an Indian jurist, economist and social reformer who led the fight against caste discrimination and championed rights for Dalits, women and labourers. As India's first law minister, he was the chief architect of the Constitution. A scholar with degrees from Columbia and LSE, he later embraced Buddhism, inspiring mass conversions. In 1990, he was posthumously awarded the Bharat Ratna. His legacy endures in law, politics and social reform.