Madhav Rao defeated the Nizam of Hyderabad and also compelled Haidar Ali of Mysore to pay tribute. He reasserted control over northern India by defeating the Rohillas and also subjugated the Rajput state and Jat chiefs.
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.