The present stage of research effectively permits tracing an Asian origin for the Indo-Europeans well before their dispersion. - Bernard Sergen

The Kurgan people had to originate in Central Asia.

One of the paradoxes of India is its astonishing linguistic diversity (they speak about five hundred languages there) compared with its cultural unity.

Shiva, Varuna, Yama, Durga-Parvati, we already said it, are deities of IE origin, the rituals concerning fire, soma and the person of the king are equally of IE if not Indo-Iranian origin. But it is now obvious that the Indo-Aryans, upon arriving in India, have amply harvested the Harappan heritage and included its ritual customs (construction of hearth-altars, rites inside buildings, use of the stellar vestment, ritual baths, fixation of feasts on the stellar equinoxes…) in their own religion.