Complex sentence: The Later Cheras (the Kulasekharas) ruled from Mahodayapuram (now Kodungallur) on the banks of River Periyar and fought numerous wars with their powerful neighbours such as the Cholas and Rashtrakutas.
Split into simpler sentences: The Later Cheras (the Kulasekharas) ruled from Mahodayapuram (now Kodungallur) on the banks of River Periyar. The Kulasekharas fought numerous wars with their powerful neighbours such as the Cholas and Rashtrakutas.