The traditional view, that iron was brought into the subcontinent by invading 'Aryans' (Banerjee 1965), is wrong on two counts: there is no evidence … - George Erdosy

Evidence for the characterization of Dasas and Dasyus as black is tenuous in the extreme.... Even apparently clear indications of historical struggles between dark aborigines and Arya conquerors turn out to be misleading.... [The Dasas and Dasyus] appear to be demonic rather than human enemies.... It is a cosmic struggle which is described in detailed accounts that are consistent with one another.”

We reiterate that there is no indication in the Rigveda of the Arya‘s memory of any ancestral home, and by extension, of migrations. Given the pains taken to create a distinct identity for themselves, it would be surprising if the Aryas neglected such an obvious emotive bond in reinforcing their group cohesion. Thus their silence on the subject of migrations is taken here to indicate that by the time of composition of the Rigveda, any memory of migrations, should they have taken place at all, had been erased from their consciousness.

[the perspective offered by archaeology], "that of material culture […] is in direct conflict with the findings of the other discipline claiming a key to the solution of the ‘Aryan Problem’, linguistics" ...Archaeologists and anthropologists... [like] Jim G. Shaffer and Diane A. Lichtenstein, who “stress the indigenous development of South Asian civilization from the Neolithic onwards, and downplay the role of language in the formation of (pre-modern) ethnic identities”; J. Mark Kenoyer, who “stresses that the cultural history of South Asia in the 2nd millinnium B.C. may be explained without reference to external agents”, and Kenneth A.R. Kennedy, who concludes “that while discontinuities in physical types have certainly been found in South Asia, they are dated to the 5th/4th, and to the 1st millennium BC, respectively, too early and too late to have any connection with ‘Aryans’.”