Alauddin Kalji introduced an innovative Chehra and Dagh System wherein the Chehra system involved the detailed description of each soldier and Dagh system involved branding of horses. Strict review of the army from time totime was carried out.
After the death of Achyuta Deva Raya, the succession was disputed. His son, Venkata I also called as Venkata Raya or Venkatadri Raya, succeeded him, but he was a weak ruler and was killed six months later.
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.