KRNB lects

KRNB lects (or Kamtapuri, Rajbanshi and Northern Bangla lects) are a cluster of modern lects that are phylogenetic descendants of 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. Since the 16th century the proto-Kamta community has fragmented giving rise to the differentiated modern lects. The modern lects are: Kamta (West Bengal), Rangpuri (Bangladesh), Rajbanshi (Nepal) and Surjapuri (Bihar).

KRNB lects

KRNB lects (or Kamtapuri, Rajbanshi and Northern Bangla lects) are a cluster of modern lects that are phylogenetic descendants of 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. Since the 16th century the proto-Kamta community has fragmented giving rise to the differentiated modern lects. The modern lects are: Kamta (West Bengal), Rangpuri (Bangladesh), Rajbanshi (Nepal) and Surjapuri (Bihar).