South Indian Origins (15,000 BP – Sangam Age) Reframed through Indus Valley Displacement and Submerged Khambhāt and Poompuhar Research Author: [Jeeva S S] Affiliation: Independent Researcher Contact: [Email
[email protected]] Version: v1.4.5 – November 2025 Summary: This paradigm shift research promotes a polycentric model—the “Dravidian Arc”—positioning South Asia (c. 15,000 BP–Sangam […]