Under the rule of the Vijayanagar empire, irrigation became prominent. The development of irrigation took place mainly during the rule of Deva Raya I. New tanks were built and dams were constructed across the river Tungabhadra.
Qutb-ud-Din Ahmad Shah II, born Jalal Khan, was a ruler of the Muzaffarid dynasty, who reigned over the Gujarat Sultanate from 1451 to 1458. He succeeded the king Muhammad Shah II.