Who emerged victorious in the battle of Venni?

The Battle of Venni was a decisive victory for Karikala Chola, where he defeated a confederacy of Chera, Chola, and Pandya rulers (according to some interpretations) or rival Chola factions. This battle, mentioned in Sangam literature, established Chola supremacy in the Tamil region and marked the beginning of Chola imperial expansion. Karikala's victory at Venni is considered one of the most significant military achievements in early Chola history.