Abstract This study was aimed to examine the Institutional Repository (IR) practices for the period of 20132016 by exploring their growth and development, maintenance, technologies used, search and access features, challenges and opportunities etc. in surveyed some libraries of Bangladesh. In Bangladesh nine libraries/ institutions were claiming the existences of IR which were also enlisted by DOAR (Directory of Open Access Repositories) of which 6 libraries were purposively selected to conduct the survey. A structured questionnaire comprising of 40 separate questions was designed for quantitative analysis of gathered data. All of the surveyed libraries commented that the concept of IR was not completely new but was evolved somehow in new package. The findings revealed that there were some problems that hampered the advancement of IR development in Bangladesh. Finally a sustainability model for IR based on some opportunities and challenges was recommended.