Open-source repositories have become an essential component of academic libraries in India, enabling cost-effective storage, organization, and dissemination of research outputs. Platforms such as DSpace and EPrints support the open-access movement initiated by INFLIBNET and endorsed by UGC policies, significantly improving research visibility. Despite this growth, many librarians face difficulties in managing repositories due to a lack of technical and professional skills. This paper explores the major challenges encountered by library professionals, including software installation and configuration, metadata creation, interoperability, system administration, digital preservation and user training. It highlights the essential professional skills required for successful repository management, such as metadata expertise, project planning, communication, advocacy, policy development and continuous learning. The study also suggests strategies for bridging the skill gap, including regular workshops, MOOCs, mentorship programs, institutional support and participation in professional networks like INFLIBNET. National and international training initiatives, including UGC-HRDC refresher courses and SWAYAM, are reviewed as key enablers of capacity building. The paper concludes that equipping librarians with these competencies ensures repository sustainability and enhances institutional rankings which secure the role of libraries as dynamic, future-ready knowledge hubs.