Kamatapuri lects

Kamatapuri lects are a group of modern lects (also called KRNB lects short for Kamta, Rajbanshi and Northern Deshi Bangla) that are associated with the proto-Kamta language that developed in North Bengal after 1255.

The development of proto-Kamta was the result of Sandhya, a ruler of Kamarupanagara (Guwahati), Kamrup moving his capital to Kamata and establishing the Kamata kingdom.

The Kamatapuri lects are spoken primarily in Goalpara region of Assam, North Bengal, Eastern Bihar and Eastern Nepal (see map).

The modern Bengali scholars like Suniti Kumar Chatterjee and Sukumar Sen have named the dialect of Bengali spoken in North Bengal as Kamrupi. Chatterjee writes, Assamese Kamrupi and Bengali Kamrupi is quite similar, the division possibly occurred due to political reasons and two forms dialect continuum. According to him, Magadhi Prakrit, keeping north of the Ganga river, gave rise to the Kamarupa Apabhramsa dialects of Western Assam and North Bengal. Chatterjee divides Magadhan dialects regionwise as Radha, Varendra, Kamarupa and Vanga

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