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Tamil Nadu to Use Satellite Imagery to Modernize and Digitize Land Records

Dec 04 2025

Tamil Nadu to Use Satellite Imagery to Modernize and Digitize Land Records

Boundary disputes are expected to be resolved more quickly in the coming months, as land-related processes such as patta updates and sub-division approvals become simpler. Encroachments will also be easier to detect as the state prepares to procure high-resolution satellite imagery to modernize and digitize land records.

The Directorate of Survey and Settlement (DOSS) has issued a request for proposal to create a high-resolution satellite imagery database covering an area of 1,30,000 sq km. This initiative is part of a broader plan to establish a modern, transparent land records management system that will support governance, infrastructure planning, and welfare programme implementation.

Once acquired, the satellite data will be integrated into the state’s geographical information system to support large-scale mapping, land surveying, and various governance applications. At present, only basic 2D data such as measurements and area details are available. With the new system, precise coordinates will be included, and satellite imagery will be overlaid on existing land records to improve accuracy. Even small variations in urban property boundaries can lead to disputes, making improved precision essential.

The directorate has already begun ground verification to ensure the accuracy of reference points. Out of 25,000 points, 18,000 have been completed so far. This effort will support better planning and advanced data visualization. The 30 cm resolution of the imagery will make mapping more detailed, improving the understanding of geographical features, land-use patterns, and infrastructure across the entire 1.3 lakh sq km area.

Stakeholders have suggested that such a major initiative should be tested on a smaller scale first. They recommend conducting a pilot in a small settlement to verify accuracy before implementing it statewide, especially since even minor differences in measurements can lead to disputes. They also emphasized the need for additional manpower to support the project. 

 

 

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