Another element of continuity between ceramics of the third millennium Baluchistan and those of the second millennium can be found in the decoration.… - Jean-François Jarrige

To take a single example here, some scholars decided that the Pirak culture, which emerged around 1800 BCE in the plains of Baluchistan, is the best representative of the Aryan intrusion. However, Jarrige, who directed excavations in the region, found that none of the transformations happening there in the early second millennium BCE, including the introduction of summer crops such as rice and millets (especially sorghum or jowar, in addition to the traditional winter crops of wheat and barley), ‘can be explained in the context of invasions of semi-nomadic peoples coming from the [Central Asian] steppes. … How could this series of transformations be seriously attributed to Indo-Aryan invaders? … Nothing, in the present state of archaeological research … enables us to reconstruct convincingly invasions that could be clearly attributed to Aryan groups’ (Jarrige 1995, pp. 24, 21). Regrettably, such well-informed views have been brushed aside in the desperate but vain search for material traces of those ‘Aryan groups’.

Despite inviting linguists to reconsider the northern steppe hypothesis in favor of the southern route, it can be inferred from Jarrige and Hassan, as from the work of a number of archaeologists considering the problem of Indo-Aryan origins, that the Indo-Aryan- locating project exists solely due to linguistic exigencies: The development of original but closely interrelated cultural units at the end of the third and the beginning of the second millennium cannot be explained just by the wandering of a single group of invaders. The processes were obviously multidirectional in regions with strong and ancient cultural traditions. This does not preclude the fact that movement of population and military expeditions . . . may have played an important historical part but, as far as archaeology is concerned, there is nothing to substantiate a simplistic model of invasion to account for the complex economic and cultural phenomena manifest at the end of the third millennium in the regions between Mesopotamia and the Indus Valley. (164)

From the Neolithic time till almost today there has never been, in spite of spectacular changes in the course of time, a definite gap or break in the history of the subcontinent.