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The article tries to explore the existing literature on Open Access Institutional Repositories (OAIRs) so that the existing developments can be identified and research gaps can be investigated. This structured review was carried out with the aid of three indexing databases, Web of Science, Scopus, and Google Scholar. Different search terms showcasing multiple dimensions of OAIRs were executed across the three databases. After eliminating the duplicate records, the papers were scanned for final review. The paper tries to highlight the status, content management policies, and Web 2.0 use/ Interactive features of the OAIRs. How the OAIRs are used by academia is also a highlight of the paper. The paper also focuses on the studies that showcase the awareness of the users using the OAIRs. Furthermore, the studies featuring the problems, and challenges have also been incorporated. Studies that focus on the factors and motivators in the use of OA IRs also form a part of the paper.