^Names (both birth names and regnal names, and even the title of the dynasty) and regnal years of the (Kodungallur / Mahodayapuram) Chera rulers of medieval period are a matter of recent and tentative research
Nedum Cheralathan succeeded his father (Uthiyan Cheralathan) and ruled the territory for 58 years (as a crown prince first and then as an absolute ruler). He was a successful ruler with several victories over neighbouring rulers such as the Kadambas. He is believed to have won over "seven crowned kings" and thus obtained the status of "adhiraja". He defeated an enemy on the Malabar Coast and captured several Yavana traders, later releasing them for ransom. Nedum Cheralathan fought a battle against a Chola ruler, an encounter in which both the principal adversaries lost their lives.