(c) The Chola kingdom of the Sangam ** extended from modern Tiruchi district to southern Andhra Pradesh. Their capital was first located at Uraiyur and then shifted to Puhar. Karikala was a famous king of the Sangam Cholas. Pattinappalai portrays his early life and his military conquests. In the Battle of Venni he defeated the mighty confederacy consisting of the Cheras, Pandyas and eleven minor chieftains. The Chola emperor launched a successful naval expedition against the sailendra kingdom.