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The discrimination most negatively affects people from "low castes and outcastes", Paik said.

Instead he says, "My childhood wasn't easy because I wasn't rich, but it helped that I wasn't an outcaste. I'm sorry people treat kids like you so badly."

Mr. Sardar is a Dalit, a class of Indians who are not just considered lower caste, but technically outcaste — what used to be called untouchable.

Between 1722 and 1723, after a series of blazes, the authorities launched a violent crackdown on suspected arsonists in which 101 people, often social outcastes or drifters, were burned at the stake.

Only the Pariah, or "outcaste," the very lowest class of the people, eats any food that has been prepared in the kitchen of a Christian.