| The Assamese language is originated from Indo-Aryan group of greater Indo-European language family and the Bodo language is originated from Tibeto-Burman group of the Sino-Tibetan language family. Both the language has special and common characteristics. According to the linguistics theory there should be a contrastive study between the languages but here trying to make a comparative study as both the language speakers have been staying in a same geographical surrounding since the day immemorial. In this paper I would like to discuss the negation process of both Assamese and Bodo language. As both the languages are agglutinating in character, prefixes and suffixes are used in negative formation. I do hope this paper will help the readers as well as the language researchers more about the languages which are spoken in the North East India |