1.Dr B R Ambedkar struggle throughout his life against the oppressive caste system

2.he was the architect of the Indian Constitution

3.he was born in the Mahar caste whose members were considered untouchables

4. for eradication of untouchability and spread equality he organised all India scheduled caste Federation

5.to promote the socio-economic upliftment of the depressed class Doctor BR Ambedkar started the bahishkrit hitakarini Sabha