Bhunaksha is a cadastral mapping software developed by NIC using Open source applications and libraries to facilitate management of digitized cadastral maps. With proper customization Bhunaksha can be integrated with existing Land Records application of any states that deals with textual data. Back end database Postgresql with Postgis spatial module is used for storing geometry and spatial attributes of plots and other features. Bhunaksha talks to other external ROR database which are mostly in MS Sql Server in implemented states. ROR database can be virtually in any RDBMS. The scanning, digitization, verification of cadastral maps are the pre-processes and input to Bhunaksha application. For overcoming diverse structure of ROR database in different states Bhunaksha defines certain interfaces for talking with ROR database. The interfaces are implemented differently for different states based on the structure of that state?s ROR database. In this way the same Bhunaksha application workbench can be used for any state just by plugging the particular state's implementation of ROR interfaces. Various operations like storage of the maps, display of village maps, display of a land parcels related to owners, division of land parcels, import of ETS data, creation of maps from Field measurement books(FMB) and updation of plots because of mutations. It also has an Android based light version for smartphones.