...thus there is no “Vedic night” separating the prehistoric/protohistoric from the early historic periods of South Asian culture history. These data… - Jim G. Shaffer

The numerous and substantial mud brick “granaries” built by the close of Period HA at Mehrgarh, in the first half of the 5th millennium B.C., suggest a concern, unparalleled in contemporary cultures, for surplus production irrespec­tive of what was stored in them.

Shaffer (1993) refers to one set of data that undermines this simplistic portrayal of an apparent devolution and re-evolution of urbanization, which "has nearly become a South Asian archaeological axiom" (55). Although there appears to have been a definite shift in settlements from the Indus Valley proper in late and Post-Harappan periods, there is a significant increase in the number of sites in Gujarat, and an "explosion" (300 percent increase) of new settlements in East Punjab to accommodate the transferal of the population.

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..