In the administrative structure of the Later Chera kingdom of Mahodayapuram, the royal officials known as 'Nalttudaiyavar' or local chieftains exercised authority over territorial units called:

💡 Solution & Explanation

Under the Later Chera kingdom of Mahodayapuram, regional territorial units were designated as Nadus, which were governed by local chieftains known as Nalttudaiyavar or Naduvazhis. Terms like Valanadus and Kurrams belong to the Chola administrative vocabulary rather than the Chera polity. South Indian medieval administration is a standard focus area for historical geography questions.