The important characteristics of the Vijayanagar administration was the Amara-Nayaka system. The top-grade officers of the army were known as Nayaks or Palaiyagars or Poligars. These officers were granted land in lieu of their services.
The Tiruvengalanatha temple was built at Vijayanagara during the reign of the king Achyuta Deva Raya. Tiruvengalanatha temple is now popularly known as the Achyutaraya temple on the name of this king.