This book is a collection of articles on Tibeto-Burman languages of North East India and is an outcome of researcher's own investigation. In most of the articles included in this collection Boro language has been given prominence because of the researcher belonging to that linguistic community. Along with Boro, its cognate languages like Garo, Rabha, Dimasa and Kokborok languages have also been compared with the Boro language and tried to show the similarities these languages have. This study is basically done from the structural point of view and the main target of this collection is to draw attention of the language researchers' towards these unexplored and little known languages of North East part of India.