Chamaraja VI and Kanthirava Narasaraja I attempted to expand further northward .
Chamaraja VI and Kanthirava Narasaraja I were thwarted by the Bijapur Sultanate and its Maratha subordinates , though the Bijapur armies under Ranadullah Khan were effectively repelled in their 1638 siege of Srirangapatna .
Chamaraja VI and Kanthirava Narasaraja I attempted to expand further northward but were thwarted by the Bijapur Sultanate and its Maratha subordinates , though the Bijapur armies under Ranadullah Khan were effectively repelled in their 1638 siege of Srirangapatna .