The Hapta Hindu mentioned in the Vendidad is obviously the Saptasindhu (the Punjab region), and the first land, ‘abandoned by the ancestors of the Ir… - Shrikant G. Talageri

Other scholars, when they deign to notice the evidence in the PurANas in respect of the indigenous origin of the Aryans and their expansion outside India, tend to dismiss this evidence as irrelevant on the ground that it is allegedly contradictory to the evidence of the Rigveda.

“Indian culture being the greatest and richest is not a narrow or chauvinistic idea; it is a demonstrable fact. It would be chauvinistic if it acquired an imperialist tinge: that other cultures are inferior and Indian culture must dominate over or replace them. In fact, I am opposed to even internal cultural imperialism. The idea that Vedic or Sanskrit culture represents Indian culture and that other cultures within India are its subcultures and must be incorporated into it, is wrong…. all other cultures native to this land: the culture of the Andaman islanders, the Nagas, the Mundas, the tribes of Arunachal Pradesh, etc. are all Indian in their own right. They don’t have to be – and should not be – Sanskritised to make them Indian”.

A detailed and path-breaking analysis (HOPKINS 1896a) shows large categories of words found in the Late books (1,8,9,10, and often 5), but missing in the Early (6,3,7) and Middle books (4,2) except in a few stray hymns classified by the western academic scholars as Late or interpolated hymns within these books. These include such categories as words pertaining to ploughing or to other paraphernalia of agriculture, words associated with certain occupations and technologies (and even with what could be interpreted as the earliest references to the castes), words where the r is replaced by l (playoga and pulu for prayoga and puru), a very large number of personal names (not having to do with the name types, common to the Rigveda, Avesta and Mitanni records, analyzed by me), various suffixes and prefixes used in the formation of compound words, certain mythical or socio-religious concepts (Sūrya as an Āditya, Indra identified with the Sun, the discus as a weapon of Indra and the three-edged or three-pointed form of this weapon, etc), various grammatical forms (cases of the resolution of the vowel in the genitive plural of ā stems, some transition forms common in later literature, the Epic weakening of the perfect stem, the adverb adas, etc.), particular categories of words (Soma epithets like madacyuta, madintara/madintama, the names of the most prominent meters used in the Rigveda, etc.), certain stylistic peculiarities (the use of reduplicated compounds like mahāmaha, calācala, the use of alliteration, the excessive use of comparatives and superlatives, etc.), and many, many more.