OSGeo - QGIS is a desktop geographic information system, or GIS.
GRASS GIS - GRASS GIS is a free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization.
ArcGIS - ArcGIS software is a data analysis, cloud-based mapping platform that allows users to customize maps and see real-time data ranging from logistics support to overall mapping analysis.
Indo ArcGIS - ArcGIS with ready-to-use GIS solutions and data products engineered for India
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.
MICRODEM - MICRODEM is a Geographical Information system (GIS) which manipulates digital map data.