Coastal states are Gujarat, Maharashtra, Goa, Karnataka, Kerala, Tamilnadu, Andhrapradesh, Odisha and West Bengal.
Other coastal union territories are Puducherry, Andaman and Nicobar Islands, Dadra and Nagar Haveli and Daman and Diu, Lakshadweep.
The Chola Empire established vast Tamil influence across South East Asian region [14][15][16] across Indonesia, Java, Bali and Sumatra.
This brought South Indian Heritage to Cambodia, Indonesia and Bali where the Balinese Hindu traditions still thrives.
[17] Towards the southernmost tip of coastal south western India the social system of inheritance was once matrilineal.