<P> Though the historical kingdom disappeared by the 12th century to be replaced by smaller political entities, the notion of Kamarupa persisted and ancient and medieval chroniclers continued to call this region by this name . In the 16th century the Ahom kingdom came into prominence and assumed for itself the political and territorial legacy of the Kamarupa kingdom . </P> <P> The kingdom derived its name from the region it constitutes . The origin of the name is attributed to be of Austric origin . </P> <P> Kamarupa and the northeast Indian region find no mention in the Ashokan records (3rd century BCE). The first dated mention comes from the Periplus of the Erythraean Sea (1st century) where it describes a people called Sêsatai, and the second mention comes from Ptolemy's Geographia (2nd century) calls the region Kirrhadia after the Kirata population . Arthashastra (early centuries of the Christian era) mentions "Lauhitya", which is identified with Brahmaptra valley by a later commentator . </P> <P> The earliest mention of a kingdom comes from the 4th - century Allahabad inscription of Samudragupta that calls the kings of Kamarupa (Western Assam) and Davaka (now in Nagaon district) frontier rulers (pratyanta nripati). The Chinese traveler Xuanzang visited the kingdom in the 7th century, then ruled by Bhaskaravarman . The corpus of Kamarupa inscriptions left by the rulers of Kamarupa, including Bhaskaravarman, at various places in Assam and present - day Bangladesh are important sources of information . Nevertheless, local grants completely eschew the name Kamarupa; instead they use the name Pragjyotisha, with the kings called Pragjyotishadhipati . </P>

Where was the name of kamrupa mentioned for the first time