Spatial Data Infrastructure (SDI) is a collection of policies, institutional arrangements, manpower and technologies to help provide accessibility to spatial data. Components of SDI include framework data, metadata and catalogue, networking and browsing protocols and partnerships. In India, over the past few years, efforts have been made to create awareness and draw-up a strategy/proposal for the implementation of the National Spatial Data Infrastructure (NSDI). Final proposal for establishing NSDI was unveiled in June, 2006. In order to support implementation of the NSDI and SDIs at different levels of the planning hierarchy, a set of tools/ techniques has been developed and tested under the Department of Science & Technology (DST)’s Natural Resources Data Management System (NRDMS) programme. Some of these tools/techniques include prototypes of standard specifications from the Open Geospatial Consortium (OGC)/ International Standardisation Organisation (ISO) e.g. Geography Markup Language (GML), Web Feature Service (WFS), Web Map Service (WMS), Ontology Tool (SANGAM) for automated integration of geospatial data by resolving semantic heterogeneities, Digital Vector Data (DVD) – GML converter and web-based data management system for HIV/ AIDS etc. Training on the tools and techniques receives priority under the programme. In the coming years, it is proposed to improve the tool kit for implementation of NSDI / SDI’s in different domains and test those for operational scale provision of spatial data. Efforts will also be made to enhance the capacity of educational institutions and research organisations to develop the required manpower.