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 "… - Jim G. Shaffer

That the archaeological record and ancient oral and literate traditions of South Asia (ie. the Vedic tradition) are now converging has significant implications for regional cultural history. A few scholars have proposed that there is nothing in the 'literature' firmly placing the Indo-Aryans, the generally perceived founders of the modern South Asian cultural tradition(s), outside of South Asia, and now the archaeological record is confirming this. Within the context of cultural continuity described here, an archaeologically significant indigenous discontinuity occurs due to ecological factors (ie. the drying up of the Sarasvati river). This cultural discontinuity was a regional population shift from the Indus Valley, in the west, to locations east and southeast, a phenomenon also recorded in ancient oral (ie. Vedic) traditions. As data accumulates to support cultural continuity in South Asian prehistoric and historic periods, a considerable restructuring of existing interpretive paradigms must take place. We reject most strongly the simplistic historical interpretations, which date back to the eighteenth century, that continue to be imposed on South Asian culture history. These still prevailing interpretations are significantly diminished by European ethnocentrism, colonialism, racism, and antisemitism. Surely, as South Asian studies approaches the twenty-first century, it is time to describe emerging data objectively rather than perpetuate interpretations without regard to the data archaeologists have worked so hard to reveal.

“No material culture is found to move from west to east across the Indus”. [in the relevant time period]

Pollen cores from Rajasthan seem to indicate that by the mid-third milennium BC, climatic conditions of the Indus Valley area became increasingly arid. Data from the Deccan region also suggests a similar circumstance there by the end of the second millennium BC. Additionally, and more directly devastating for the Indus Valley region, in the early second millennium BC, there was the capture of the Ghaggar-Hakra (or Saraswati) river system (then a focal point of human occupation) by adjacent rivers, with subsequent diversion of these waters eastwards. At the same time, there was increasing tectonic activity in Sindh and elsewhere. Combined, these geological changes meant major changes in the hydrology patterns of the region. These natural geologic processes had significant consequences for the food producing cultural groups throughout the greater Indus Valley area. Archaeological surveys have documented a cultural response to these environmental changes creating a “crisis” circumstance...