The Early History of India, from 600 B.C. to the Muhammadan Conquest, including the Invasion of Alexander the Great c31.s3.2

c31.s3.2

The ancient kingdom of Kāmarūpa, although roughly equivalent to Assam, generally occupied an area larger than that of the modern province, and extended westward to the Karatōya river,² thus including the Kūch Bihār State and the Rangpur District. The earliest notice of the kingdom which is of any use for the purposes of the historian is the statement in Samudragupta's inscription on the Allāhābād pillar, recorded about A. D. 360 or 370, that Kāmarūpa was then one of the frontier states outside the limits of the Gupta empire, but paying tribute and owing a certain amount of obedience to the paramount power.³