Malik Kafur
In 1308, Alauddin's lieutenant, Malik Kafur captured Warangal, overthrew the Hoysala Empire south of the Krishna River and raided Madurai in Tamil Nadu. He then looted the treasury in capitals and from the temples of south India. Among these loots was the Warangal loot that included one of the largest known diamond in human history, the Koh-i-Noor. Malik Kafur returned to Delhi in 1311, laden with loot and war booty from Deccan peninsula which he submitted to Alauddin Khalji. This made Malik Kafur, born in a Hindu family and who had converted to Islam before becoming Delhi Sultanate's army commander, a favorite of Alauddin Khalji.