This report documents the history of the systems of rice intensification (SRI, for short) in India in the last few years and presents some of the institutional changes and challenges that SRI throws up. The first part looks at the complex and continuing evolution of SRI in India and presents SRI as an innovation in process and not as a completed product. Farmers and other actors are continuously shaping it through their practice. Part II focuses on insights of the innovation systems framework looking closely at the nature and quality of linkages of the various actors.