The Hyderabadi biryani developed under the rule of Asaf Jah I, who had been appointed as the Governor of Deccan by the Mughal emperor Aurangzeb. It is made with basmati rice, spices and goat. Popular variations use chicken instead of goat. There are various forms of Hyderabadi Biryani. One such Biryani is the kachay gosht ki biryani or the dum biryani, where the mutton is marinated and cooked along with the rice. It is left on slow fire or dum for a fragrant and aromatic flavor.