Tamil India by M. S. Purnalingam Pillai first published in 1945.

Tamilaham or the home of the Tamils was in the hoary past the southern regions of the large island known as Navalam or Sambu Divu. This island, one of the first land-formations on either side of the equator, was bounded on the north by the Vindhya mountains and touched Australia, Africa, and China on the south, west and east respectively.