An Indian non-English author speculates that 1) the Vedic Aryans were a fringe group whose culture centered around yajna (fire) and shunning civilization for the forests, but 2) the mainstream group was centered around dhyāna (meditation) and urbanism. Any pointers for/against this line of thought?
Can you provide more information one their main theory, maybe give me an English quote? From the brief description you gave, it sounds frankly silly, even for Hindu-Nationalists, but I'd like more to go on here.