Stone Cave, Bhumnyu at Longleng. 15 minute drive from longleng town, It is believed that the Ahom King Gadapani/Godapani and his wife Joymati Konwari hid in these caves to escape from Laluk Burphukan a claimant to the Ahom throne. later on Godapani ascended to Ahom throne in 1681 A.D and assumed the Ahom name, Godadhar Singha.
Here’s an extract from an article by M. Imyu Longchar
(Prince Godapani who wandered in Naga hills while hiding himself from Laluk Burphukan a claimant to the Ahom throne. Nagas sympathized with Prince Godapani, gave shelter and offered every form of assistance.
He stayed for some time in a few Ao Villages then proceeded to Phom area and Konyak area and then he married a Konyak girl named “Watlong” daughter of Thawang, later on Godapani ascended to Ahom throne in 1681 A.D and assumed the Ahom name, Godadhar Singha. )
What is intriguing is that the structures inside looks manmade with proper slabs and column but at the same time it looks impossible to build such structures. Due to earthquake, some tunnels have become narrow. It’s supposed to lead to the King’s chamber. A small passage still exist where one can climb to an upper chamber infested with bats. However beyond that it will need special tool to investigate.