KRNB lects
KRNB lects are modern lects that arose from the proto-Kamata language. The proto-Kamata language began differentiating after 1250 around Kamatapur, the capital city of Kamata kingdom, as the western branch of the proto-Kamarupa, whereas the eastern branch developed into proto-Assamese, which finally yielded the modern Assamese language. Kamrupi is today one of the western dialects of Assamese. Kamatapuri is represented by group of modern lects, termed variously Kamtapuri, Rangpuri, Rajbanshi and Surjapuri.
Origin
The development of proto-Kamta was the result of Sandhya, a ruler of Kamarupanagara, Kamrup moving his capital to Kamatapur and establishing the Kamata kingdom, thus carrying the native language along with.Region
The modern KRNB lects are spoken primarily in western Assam, northern West Bengal, northern Bangladesh, north-eastern Bihar and south-eastern Nepal.
