It will be interesting and useful to know the current names of these places.
Here is a List.
The Purans describe Bharatvarsha as a part of Nine Divisions.
Ancient Name Present Name
1.Indra Dweep Andaman.
2.Naga Dweep Nicobar.
3.Saumaya Dweep Sumatra.
4.Gandharva Dweep Philippines.
5.Varun Dweep Borneo.
6.Kauserman Dweep Sulawesi.
7.Gabastiman Dweep Papua New Guinea.
8.Tamrabarani Dweep Sri Lanka.
9.Kumaika Dweep Bharatvarsh.
It may be noted that except Bharatvarsha, all are Islands.
I have posted an article mentioning that the Tamil Kingdoms extended up to Equator.
This suggests that the boundaries of the present North India extended farther in the North, probably encompassing all the countries of now.
I shall be posting on this shortly.
Please read my post on Kingdoms of Ancient India with Map.
Rer.Message of the Purans by Dr.B.B.Paliwal.
Suggestions for improvement welcome.