Mongol invasions were repulsed by Zafar Khan who was military general in the reign of Allauddin Khilji. In 1298, as per order of Sultan Allauddin Khilji , about 30,0000 New Muslims were slaughtered in a day, as he suspected them of being involved in a conspiracy against him and of being a threat to his power. (Mongolians who settled near Delhi and accepted Islam were called "New Muslims").
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