Rigvedic Period

In the Oak-Bhaty framework, the oldest mandalas of the Rigveda (6, 3, 7, 4, 2) were composed before 24,000 years ago. This dating rests on precession-encoded astronomical references within the hymns — references that can only correspond to specific celestial configurations at deep antiquity. Rupa Bhaty's analysis of Surya Siddhanta epochs identifies multiple independent update timestamps, with the earliest at approximately 14,500 BCE, where three simultaneously satisfied observations converge: two pole stars (Abhijit/Vega near the north and Agastya/Canopus near the south) and Earth's obliquity at 24 degrees.

This is the most radical departure from mainstream chronology. Conventional Indology places the Rigveda at 1500–1200 BCE based on linguistic and archaeological correlations. Oak's counter: linguistic dating cannot address astronomical data, and the absence of archaeological evidence at this depth is explained by the Last Glacial Maximum — when sea levels were 120 meters lower, vast continental shelves were exposed, and most human habitation would have been in now-submerged coastal zones.

The Rigveda describes a grand Saraswati fed by glacial meltwater — consistent with Late Pleistocene conditions. The hymns celebrate a society with sophisticated astronomical knowledge, complex ritual practices, and detailed geographical awareness. Whether this represents actual composition dates or accumulated oral tradition encoding older observations is an open question.

Bhimbetka's 100,000+ year occupation record proves continuous human presence in the subcontinent during this period. The question is not whether people were there, but whether they possessed the cultural complexity the Rigveda describes.