Raja Raja captures Udagai in the western hill country of the Cheras in a battle fought sometime before 1008 CE.
Kalingattuparani, a war poem written during the reign of Kulothunga Chola I, hints at a slight on the Chola ambassador to the Chera court as the reason for this sacking of Udagai.
Raja Raja's son Rajendra is the Chola general leading the army in this battle.
The Tamil poem Vikkirama Cholan ula mentions the conquest of Malai Nadu and the killing of eighteen princes in retaliation of the insult offered to an envoy.
