The 'Rayas' in the Vijayanagara Empire were called:

Narapati

The correct answer is Option (3) → Narapati

In the Vijayanagara empire, Rayas were known as narapati or lord of men.

Gajapati literally means lord of elephants. This was the name of a ruling lineage that was very powerful in Orissa in the fifteenth century. In the popular traditions of Vijaynagara the Deccan Sultans are termed as Ashvapati or lord of horses and the rayas are called narapati or lord of men. The rulers of Vijaynagara, who called themselves rayas.