The construction of a new fort at the site was started by Rajput Raja Gulab Singh of Jammu in 1817 and continued till 1841.

The renovation of the fort was started by Gulab Singh of Jammu and Kashmir in 1817 and continued till 1841.

A new entry gate and a stone wall one m wide and 50 m long was built all around, thereby making it less vulnerable to attacks.

During Maharaja Hari Singh's rule an English minister ordered that the armoury be destroyed and shifted the treasury to Jammu.

The inferred deposits of 5.9 million tonnes of Jammu and Kashmir lithium reserves, accounting to the 2023 the Geological Survey of India as located inmate near vicinity of the castle.