Bhimrao Ramji Ambedkar, social reformer and chief architect of India’s Constitution, fought relentlessly for the economic and social empowerment of Dalits in the country. The staunch leader passed away on December 6 1956, a day that India observes as 'Mahaparinirvan Divas'. Every year on this day, thousands of Dalits and followers of Ambedkar pay tribute to the legacy of the Dalit icon.