A diffusion or migration of a culturally complex ‘Indo-Aryan‘ people into South Asia is not described by the archaeological record. - Jim G. Shaffer

The previous concept of a Dark Age in South Asian archaeology is no longer valid.... [we have a] cultural continuum stretching from perhaps 7000 BC into the early centuries AD...

Two conclusions may be drawn from the archaeological data. First, there is no connection between PGW culture and that of the Aryans. Second, if the "Aryan" concept is to have any cultural meaning, then such a culture (PGW) had an indigenous South Asian origin within the protohistoric cultures of the Ganga-Yamuna region. There was no invasion from the West. The current archaeological evidence suggests that the original reconstruction indicating the occurrence of an Indo-Aryan invasion mistakenly associated linguistic change with the migration of peoples. Linguistic changes and affiliations are brought about by a complex series of cultural processes, many of which do not involve the physical movements of social groups.

Since stamp seals were not available to everyone in a social group, and because their inscriptions most likely reflect titles and/or personal names, it is reasonable to conclude that cattle were invested with social importance and cultural identity. Moreover, if seals were also a marriage talisman, as Fairservis argues, they suggest that cattle constituted a wealth category associated with forging important social relationships such as marriage. Furthermore, if cattle, as wealth, provided access to reproductive sources, they were probably also avenues to establishing, maintaining or breaking other important social, economic, political and religious relationships.