 He presently defeated the Chola king Rajaraja Chola III at the battle of Tellaru and imprisoned the king and his ministers at Sendamangalam in 1231-1232 as he did not know him very well.Rajaraja Chola III immediately "appealed" to the Hoysala king for help.A Chola inscription states that Kopperunchinga was helped by the Lanka king Parakrama Bahu II in the battle.