I found this talk by Raj Vedam on YouTube Indian civilization: The Untold Story- A Talk by Raj Vedam.
What if the history of India that we learn in our textbooks tells only part of the story, and worse, tells the story incorrectly? What if there are significant periods missing in the narration on Indian history that is not being told today? In this talk he critiques present-day narratives, examines the evidence from a variety of scientific disciplines, and presents a unique, strong and compelling case for an untold prehistory of India.
There is a very good follow-on video Q&A: Indian Civilization-The Untold Story:- A Talk By Raj Vedam.
I don’t often get an opportunity to name drop, so please indulge me in the following remarks.
I worked with Raj Vedam when I was in Oregon from 1994 to 2006. We had some deep conversations about the world, but I still had no idea of this level of research. When I worked with him, as far as I knew he was doing research in mathematics and computer science. I had enough of my own expertise to understand maybe half of what he tried to explain to me. However, I saw the evidence in the software that he produced to realize that he really knew what he was talking about.