Was not aware of that but I will take your word for it. Interesting subject.
http://en.wikipedia.org/wiki/Out_of_India_theory
The oddest part of this “controversy” is that the Indians involved seem to take it as a national insult to theorize that the Aryans invaded and conquered India. While Europeans are not at all offended by theories that the Aryans (or their western relatives) invaded and conquered Europe.