Hope it helpssss...........................
A poster by me on Dr. B. R. Ambedkar : 

Dr. B. R. Ambedkar is really a stupendous leader who worked a lot on the social sins so that none will be effected by them. the caste discrimination was too much during the olden days because the people weren't too much educated and the higher class people always tried to discriminate the people of lower classes it is really a social sin where the people are hurt by words or others behavior.
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hope so my answer is useful and mark as best if possible :D
This poster is made by myself (: