Indo-Aryan migration

Chronology

The Indo-Aryan migration is dated subsequent to the Mature Harappan culture and the arrival of Indo-Aryans in the Indian subcontinent dated during the Late Harappan period. Based on linguistic data, many scholars argue that the Indo-Aryan languages were introduced to India in the 2nd millennium BCE. The standard model for the entry of the Indo-European languages into India is that this first wave went over the Hindukush, forming the Gandhara grave culture or Swat culture , either into the headwaters of the Indus or the Ganges (and probably, both). The language of the Rigveda, earliest stratum of Vedic Sanskrit is assigned to about 1500-1200 BCE.

The separation of Indo-Aryans proper from Proto-Indo-Iranians has been dated to roughly 2000 BCE–1800 BCE. It is believed Indo-Aryans reached Assyria in the west and the Punjab in the east before 1500 BC: the Indo-Aryan Mitanni rulers appear from 1500, and the Gandhara grave culture emerges from 1600. This suggests that Indo-Aryan tribes would have had to be present in the area of the Bactria-Margiana Archaeological Complex (southern Turkmenistan / northern Afghanistan) from 1700 BC at the latest (incidentally corresponding with the decline of that culture).

The Swat culture is the most likely locus of the earliest presence east of the Hindukush of the bearers of Rigvedic culture, and Parpola (1999) based on this assumes an immigration to the Punjab ca. 1700-1400, but he also postulates a first wave of immigration from as early as 1900 BC, corresponding to the Cemetery H culture.

Rajesh Kochhar argues that there were three waves of Indo-Aryan immigration that occurred after the mature Harrapan phase : the Murghamu (BMAC) related people who entered Baluchistan at Pirak, Mehrgarh south cemetery etc and later merged with the post-urban Harappans during the late Harappans Jhukar phase; the Swat IV that co-founded the Harappan cemetery H phase in Punjab and the Rigvedic Indo-Aryans of Swat V that later absorbed the cemetery H people and gave rise to the PGW culture. He dates the first two to 2000-1800 BCE and the third to 1400 BCE.