Explanation:

 Chamba has an ancient history, which is inseparable from that of the surrounding district of Chamba. The earliest rulers were Kolian tribes. In the 2nd century BC the Khasas and Audumbaras were in power in the region. In the 4th century AD during the Gupta period, the Thakurs and Ranas ruled. From the 7th century, the Gurjara Pratiharas or the Rajput dynasty came into power.

The recorded history of the Rajput rulers is traced to an eminent individual named Maru who is said to have moved to northwest India from Kalpagrama, around 500 AD. He founded his capital in the Budhal river valley at a place called Brahmapura, which later became known as Bharmaur.