Subhashis Das is an explorer and independent researcher dealing with megaliths and Indias hitherto unknown tribal past. Credited with the discovery of numerous megaliths, he has previously authored three volumes on his research. Das is recognised for the discovery of applied astronomy in several megaliths in Jharkhand. The authors discoveries and research on the megaliths of Jharkhand feature in the states history books. His findings have also been showcased in several documentaries by National Geographic, Doordarshan, et al. He regularly gives lectures across the country, and abroad, on megaliths and tribalisma task he deems essential for understanding the ancient history of India.