The Cholas, a dynasty from South India, conquered both Sri Lanka and various South-East Asian countries. The Cholas were known for their strong naval power and expansionist policies. They established control over Sri Lanka in the 10th century and maintained their influence for several centuries. The Cholas also expanded their empire to South-East Asia through conquest and diplomacy. They established trading relationships with various kingdoms in present-day Malaysia, Thailand, Cambodia, and Indonesia. This allowed them to exert influence and control over these regions. The Chola dynasty played a significant role in spreading Indian culture, religion, and political administration to these foreign lands. Their conquests and influence in Sri Lanka and South-East Asia are considered a prominent chapter in South Indian maritime history.