. ______________________________________________________________________ Vijayanagara Empire The Vijayanagara Empire Kannada : Vijayanagara Smrjya , Telugu : Vijayanagara Smrjyamu , referred as the Kingdom of Bisnaga by the Portuguese , was a South Indian empire based in the Deccan Plateau . Established in 1336 by Harihara I and his brother Bukka Raya I .