किस भारतीय राजा ने व्यापक नौसैनिक अभियानों का उपयोग करके दक्षिण-पूर्व एशिया के कुछ हिस्सों में अपने साम्राज्य का विस्तार किया था?

Who was the founder of South India's famous Chola dynasty?

In Chola administration, high-ranking officials were termed as:

The details regarding the local self-government and village assemblies during the Chola period are primarily known from which inscriptions dated 919 AD and 921 AD?