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. This is the only inscription among the Kamarupa inscriptions that distinguishes between the b (ব) and v (ৱ) letters. Additionally, since it betrays no influence of a local Prakrit, this inscription is often placed earlier than the Umachal rock inscription. It also avers to the fact that Aryan culture had spread to the Golaghat region by the 5th century.