The Institutional Repository at NAL is the digital archive of the research output of the scientists and technologists. The Repository was established with objectives of increasing visibility for intellectual output of an organization and long term preservation with well established policies. GNU Eprints open source IR tool is used for archiving and managing the digital collection. This paper in detail explains the inception and the saga of six year journey of NAL-IR in green road OA publishing channel. The paper discusses the technology employed, methodology adopted for data collection and preservation, customization of NAL-IR. The process of user education regarding OA publishing with respect to green road is discussed in detail with statistics. It is summarized by providing the current status and the statistics on number of hits received.