Tenali Ramakrishna was the author of Panduranga Mahamatyam. He is one of the eight eminent scholars of Telugu known as the ‘Ashta diggajas’ who adorned the court of Krishna Deva Raya.
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.