Ambedkar’s speech was suppressed by its own host organization in 1936

Evidence

Ambedkar refused to alter his speech, and so the event was cancelled. His text ought not to have come as such a surprise to the Mandal. Just a few months previously, on 13 October 1935, at the Depressed Classes Conference in Yeola in the Bombay Presidency (now in the state of Maharashtra), Ambedkar had told an audience of more than ten thousand people: Because we have the misfortune of calling ourselves Hindus, we are treated thus. — Ambedkar, B R, Annihilation of Caste_ The Annotated…, 137