The modern archaeological record for South Asia indicates a history of significant cultural continuity; an intrepretation at variance with earlier ei… - Jim G. Shaffer

A cultural tradition refers to persistent configurations of basic technologies and cultural systems within the context of temporal and geographical continuity. This concept facilitates a stylistic grouping of diverse archaeological assemblages into a single analytical unit, while limiting the need for establishing the precise nature of cultural and chronological relationships that link assemblages but imply that such relationships exist..

Given these characteristics, a preference for cattle, after 5000 B.C., undoubtedly influenced other social, economic and political rela­tionships, and suggests that cultural developments in South Asia did not simply parallel those in Southwest Asia, where groups did not have a comparable bias.

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.