Early Port Cities in the Malay Peninsula gives most recent discovered information about the historical spread of Indian (or better Tamil) culture from southern India across the Bay of Bengal to the Malay Peninsula and from there to other parts of mainland Southeast Asia (Funan, Champa, Chenla and Dvaravati) and finally to maritime Southeast Asia.

As this work will show, it was not an Indianization but a Tamilization, since the ethnic Tamil people of the southernmost region of India played the active part to transfer their religious and cultural traits from their homeland to Southeast Asia.