Institutional Repositories is Considered as an important jewel of a university library. Consequent upon the advancement of Information and communication technology, the libraries across the globe have emerged with the innovative ideas to meet the information needs of the patrons of which Institutional Repository is one of such invention. Institutional Repository facilitates scholarly communication where the research output can be shared and communicate to the mass audience of scholaristic society. The present study tends to study about the management and maintenance of Institutional Repositories of some selected universities libraries of Assam. The study is confined to university libraries namely Assam Agricultural University, Assam Kaziranga University, Tezpur University and Gauhati University of Assam. The data were collected by designing a well-structured questionnaire with relevant questions related to the topic of study. The study primarily focus on knowing the present scenario of Institutional Repositories in libraries of universities ,the policies and procedures employed while implementing Institutional Repositories ,the imitative taken by university libraries in creating awareness about Institutional Repository and to know various professional training given to the staff by library with regard to Institutional Repositories. The authors have elaborately analyze the findings with regard to improvement and advancement of Institutional Repositories in its future to come.