Surjapuri language
Surjapuri is an Indo-Aryan language of the Bengali-Assamese branch, spoken in Eastern India including North Bengal, West Bengal, and some eastern parts of Purnia division of Bihar, as well as Jhapa District in Nepal, Goalpara Division of Assam in India and Rangpur Division in Bangladesh.Surjapuri region or Varandrakhand is mainly spoken of Surjapuri Bengali in the parts of Purnia division (Kishanganj, Katihar, Purnia, and Araria districts) of Bihar.Surjapuri is associated with the Kamtapuri language (and its dialects Goalpariya, Rajbanshi and Koch Rajbangshi) spoken in North Bengal and Western Assam,[4] as well as with Assamese, Bengali, and Maithili.Surjapuri has the oblique plural suffixes: sā (hamsā-, tomsā-) and smā (ismā-, usmā-).They are also seen in Early Assamese as: sā (āmāsā-, tomāsā-) and sambā (esambā-, tesambā-) and their occurrences are similar.