When these people entered Morang they entered as Rajbanshis. The name Rajbanshi was given after A.D. 1515. The original tribal name of Rajbanshis is Koch or Koche. Rajbanshis are found mainly Jhapa, Morang and Sunsari.
Though having Mongoloid feature, their languages akin to Bengali and Assamese.They wear clothes conforming to our climate and weather.
The language of Koches, who are considered the original ethnonym of Rajbanshis, has commonalities with the language of Garo.
They worship Thakur Brahamani and also practice shamanism this custom also prevails among some other ethnic groups of Nepal.
Their principal occupation agriculture. Worshippers of nature and followers of shamanistic religion our indigenous