Golconda is one of the famous forts of India. The name originates from the Telugu words "Golla Konda" meaning "Shepherd's Hill". The origins of the fort can be traced back to the Yadava dynasty of Deogiri, and the Kakatiyas of Warangal. Golconda was originally a mud fort, which passed to the Bahmani dynasty and later to the Qutb Shahis, who held it from 1518 to 1687 A.D. The first three Qutb Shahi kings rebuilt Golconda, over a span of 62 years. The fort is famous for its acoustics, palaces, factories, ingenious water supply system and the famous Fateh Rahben gun, one of the cannons used in the last siege of Golconda by Aurangzeb, to whom the fort ultimately fell.