トゥグルク朝
Each military campaign and raid on non-Muslim kingdoms yielded loot and seizure of slaves. Additionally, the Sultans patronized a market ("al-nakhkhās") for trade of both foreign and Indian slaves. This market flourished under the reign of all Sultans of Tughlaq dynasty, particularly Ghiyasuddin Tughlaq, Muhammad Tughlaq and Firoz Tughlaq.