The study analyses the current status of BIMSTEC countries' Open Access Institutional Repositories register in OpenDOAR. Required data were obtained from the Directory of Open Access Institutional Repositories website. Then collected data have been analyzed and represented in graphical formats to understand the study results. The researchers assessed the BIMSTEC countries’ contribution to various parameters such as type of repository, content, disciplines, languages interface, and software used to build institutional repository. The study findings revealed that out of 150 repositories, the highest number of registration of repositories was taken place in the year 2013 and 2019, i.e., 18(12%). Most of the repositories preferred the English language 143(71.14%) interface to develop institutional repositories, followed by the Thai language 15(7.46%). The majority of the repositories used Dspace software 101(67.33%), followed by EPrints 32(21.33). The country-wise distribution shows that India has the highest number of institutional repositories, 98(65.33%) registered in DOAR. The content-wise distribution of Institutional Repositories in DOAR shows that 111(23.27%) of repositories consist of journal articles followed by Theses and Dissertations 83(17.40%). The majority of 80(22.60%) intuitional repositories are multidisciplinary, followed by Science General 49(13.84%).