This humiliation was too much for the friendly Hoysalas to witness and tolerate. Vira Narasimha started from his capital with a view to rescuing the Cholas and punishing his recalcitrant subordinate. His armies wrought such havoc around Sendamangalam that Kopperunjinga released Rajaraja III who was thereafter restored to the Chola throne on which in any case he sat precariously.
Then the Hoysala army marched to the northern banks of the Kaviri, defeated the Pandyan army at Mahendramangalam and levied tribute from the Pandya. Thus for a second time the Hoysalas interfered in the politics of the Tamil country and stemmed the tide to Pandyan expansion to the north. Then Vira Narasimha styled himself the “refounder of the Chola kingdom”.
In the reign of Narasimha II the territory between the Krishna and the Tungabhadra was lost in the conflict with the Yadavas of Devagiri about 1224. But what the Hoysalas lost in the north they gained in the south by stabilising themselves near Srirangam at Kannanur.
Vira Narasimha’s son Somesvara succeeded his father in 1235 and ruled till 1254. He established himself at Kannanur about 1239 and played a part in the affairs of the expiring Chola Empire. He built the front tower of the Siva temple at Uruvanaikka. He clashed with the rising Pandya power and was defeated and killed (1254) in an engagement with Jatavarman Sundara Pandya I.