Navratangarh, in Chotanagpur, was the seat of power of the dynasty's 45th ruler, Durjan Sal.

A multi-storeyed underground palace, of immense historical importance, has been found during excavations by the Archaeological Survey of India (ASI) at Navratangarh in Sisai block of Gumla district in Jharkhand.

The structure is believed to be around five and a half centuries old and date to the Naga or Nagavanshi dynasty.

The excavations being carried out by the ASI in and around the palace have yielded many important ancient remains. The department will carry out further studies to unravel the mysteries behind it.

Shivkumar Bhagat, the Superintending Engineer of the ASI, who is supervising the excavation, says that the results of the ongoing excavation, which can go up to March 2022, can throw new light on the history of the Naga/Nagavanshi dynasty.

Navratangarh, in Chotanagpur, was the seat of power of the dynasty’s 45th ruler, Durjan Sal.

Durjan Sal ruled the kingdom for the longest. According to the evidence found so far, he had built the fort here in 1571. It is said that this fort was of 9 storeys, so it was given the name of Navratangarh. The ruins of this fort have been there for years and have been an object of curiosity for local tourists, as well as archaeologists and historians.