Nedunkilli was a Tamilking of the Early Cholas mentioned in Sangam Literature. Nedunkilli is mentioned in context with a civil war between him and another Chola Nalankilli. We have no definite details about this Chola or his reign. The only information we have is from the fragmentary poems of Sangam.
Relationship between Nalankilli and Nedunkilli
Manimekalai embellishes the story of the mortal battle Nedunkilli fought with Nalankilli at Kariyaru. According to Manimekalai, the battle was fought by a junior Chola prince in the reign of Mavankilli, also called Nudumudikilli and Killivalavan. We can infer for this that Nalankilli was the junior prince and was the younger brother of Nedumudikilli. Some of the Purananuru Poems call Nalankilli ‘Setcenni Nalankilli. This suggests the relationship between Ilamcetcenni, the father ofKarikala Chola, and Nalankilli. Nalankilli also had a younger brother Mavalattan. From the above K.A.N. Sastri deduces that Nalankilli, Nedunkilli and Mavalattan were the three sons of Karikala Chola. There is however nothing other than the name Kariyaru to connect the battle mentioned in Puranauru and Manimekalai. Manimekalai vividly describes this battle as a great event in Chola history rather than a petty quarrel between two brothers as seen from Purananuru. This is also no mention of the involvement of Chera and Pandya kings in the Purananuru poems.
War between Nedunkilli and Nalankilli
Purananuru speaks of the war between two Cholas Nalankilli and Nedunkilli, which lasted until the death of Nedunkilli at the battlefields of Kariyaru. These two Cholas must have belonged to the rival branches of the Chola families, which ruled from Poompuhar and Urayur as their capitals. Nedunkilli was the opponent of Nalankilli and ruled from Urayur. The poet Kovur Kilar addresses Nedunkilli in two poems and gives some details regarding the civil conflict. According to these poems, Nedunkilli was once shut up at a fort in Avur and was besieged by Nalankilli. The poet graphically describes the strife the ordinary people went through because of the siege, and demands that Nedunkilli come out and fight like a man. Nedunkilli had ambition without courage and brought much suffering on himself and his subjects by his cowardice. Like all cowards, he seems to have lived a life of constant dread of treachery and foul play. When Nalankilli besieged Urayur with Nedunkilli locked up inside the fort, a poet named Ilantattan went into the fort. Nedunkilli took him prisoner, suspecting his to be a spy and was about to have him killed. The poet Kovur Kilar, successfully pleaded for Ilantattan’s life.
Battle of Kariyaru
Manimekalai mentions of a great battle of Kariyaru in which the 'Chola junior prince' defeated the Pandya and Chera kings. We can infer that the Chola prince Ilangon to be Nalankilli and that this was the battle in which Nedunkilli met his fate and the civil strife came to an end. Kovur Kilar again pleaded with both the Chola princes to give up their strife, as whoever wins, the loser will be a Chola. The plea apparently had no effect and Nedunkilli was killed in battle at Kariyaru.