The theory of large-scale invasion by Aryans is now discounted as there is no evidence to support it.
Notes from Wikiquote
quoted in Danino, M. (2009). A BRIEF NOTE ON THE ARYAN INVASION THEORY. PRAGATI| April-June 2009
Quote text and notes from Wikiquote: Madhukar Keshav Dhavalikar (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.