Alauddin Khalji implemented stringent market control policies to ensure goods were available at fixed prices, primarily to maintain a large standing army at a lower cost. He established separate markets for different commodities, including grain (mandi), cloth and general merchandise (Sarai-i- adl), and horses, slaves, and cattle. Officials like Shahna-i-Mandi were appointed to oversee these markets and enforce regulations. The sale and purchase of slaves were common practices in medieval markets, including those under Alauddin Khalji.