Aindram a Grammatical work of the early Tamils was destroyed.
This might be from the land mass Aindra.
Tamraparnam might mean the early Tamisl 47 Kingdoms.
River Tamraparni still flows in Thirunelveli district, Tamil Nadu.
This river lowed, in earlier times to further south and joined the sea in Kumarikndam as the now defunct ancient River Pahruli.