The Amar Nayakas were military commanders or chiefs in the Vijayanagara Empire. The 'Nayaka' system, also known as the 'Amara-Nayaka' system, was a significant administrative and military feature. These commanders were granted territories (amarams) by the king in return for maintaining a stipulated number of troops, elephants, and horses, which they were required to bring to the king's aid when needed.