Annihilation of Caste is an undelivered speech written in 1936 by B. R. Ambedkar. The speech was to be delivered at an anti-caste convention held in Lahore by Hindu reformers. However, upon reviewing the written speech, the conference organizers deemed it too controversial, and subsequently revoked Ambedkar's invitation to the conference. Ambedkar proceeded to self-publish the speech, which gained widespread popularity and prompted translations into multiple Indian languages.