Varman dynasty in the context of "Umachal rock inscription"

The Nagajari-Khanikargaon rock inscription is a 5th-century land grant discovered in the Nagajari area of the Golaghat district. The artifact is fragmentary, with inscriptions in Sanskrit written in the eastern variety of the Brahmi script. In style, language, and script, the inscription is very similar to the Umachal and Barganga rock inscriptions. Additionally, since it betrays no influence of a local Prakrit, this inscription is often placed earlier than the Umachal rock inscription. It also indicates that Indo-Aryan culture had spread to the Golaghat region by the 5th century. It is also speculated that it might belong to a different dynasty unrelated to the Varmans of Kamarupa.

Pragjyotishpura or Pragjyotisapura, now deemed to be a region within modern Guwahati, is claimed to be an ancient city and capital of the Varman dynasty (350 - 650 A.D). Though the earliest mention of Pragjyotisha in local sources come from the 7th century, the form was changed to Pragjyotishpura in the 9th century which describes it as the city of Naraka within Kamarupa.

In Puranic text like the Ramayana, Pragjyotishpura is described as the fortress of Narakasura on mount Varaha located in the north-west of the Indian subcontinent in what is modern-day Punjab and Sindh.