 Meanwhile , almost a decade after their victories at Talikota , the Deccan sultanates of Bijapur and Ahmadnagar agreed in 1573 not to interfere in each other 's future conquests by reserving regions to the south for Bijapur . In 1577 , Bijapur forces attacked again and overwhelmed all opposition along the western coast . Easily taking <unk> , a former Vijayanagara stronghold , they attempted next to take Penukonda , the new Vijayanagara capital . ( See Map 3 ) . ) There , however , they were repulsed by an army led by the Vijayanagara ruler 's father @-@ in @-@ law , <unk> Raya , who had traveled north for the engagement from his base in <unk> . For his services , <unk> Raya 's territories within the crumbling empire were vastly expanded , extending westward now up to the Western Ghats , the mountain range running along the southwestern coast of India , and with a new capital in <unk> ( See Map 6 . ) 
