Demarcation survey to determine the boundary of plot. To confirm the boundary of plot not only the requirement of plot custodian but the responsibility of land authorities too... Usually the plot limit is prescribed by coordinates. Through the demarcation process, the coordinates are establishing at the site. The GPS or Total Mainly using the survey. While perform the official demarcation, the government bodies or the inspection authorities will be present. To get the approval of a plot limit by the authorities, we are performing the survey in their presence and submitting the required data to them.