The bench of Justice Sanjay Kishan Kaul and Abhay S. Oka on a PIL Petition observed that "It is necessary that the modern technologies for Satellite mapping of lands and buildings to detect encroachments and unauthorized/illegal constructions and Geo fencing of lands/premises for prompt monitoring and control takes place."

Considering the importance of these technologies, the Bench held that "Geo-fencing is widely used for various purposes including surveillance/monitoring of selected areas/premises requiring constant vigil and care and it would possibly be ideally used in the cases of water bodies, forests, mining areas etc. which require regular monitoring to prevent various illegalities such as encroachments, illegal mining etc."

The Court observed that "On analysis of the matter, we find that in order to detect encroachment of land, a preliminary requirement was conducting satellite mapping of lands and Digitization of Cadastral Maps which apparently has already been completed in the Union Territory of Delhi under Digital India Lands Records Modernization Programme (DILRMP)."

The bench further observed that "The next requirement is to obtain High Resolution Satellite Imagery of the area from Indian Remote Sensing Agency (IRSA) or other external sources such as Google. The alternative apparently is that the aerial photographs by engaging services of drone fitted with high precision cameras as the aerial photography through high resolution drones are purported to be superior to that which are readily available through Satellite Imagery pictures." and then the bench said it is required that "Geo fencing of the Digitalized Cadastral Maps and High Resolution Satellite Imagery (of all aerial photography) by fixing reference points along the boundary of the areas selected for Mapping."

The Court then observed that "aerial photography obtained from the Drone shall be superimposed on the Geo reference area development plans to detect unauthorized usage of lands for construction within the permissible zone. The aerial photography obtained from the drone needs to be verified with individually with the approved building plans by the DDA."

Lastly the court remarked that "By adopting the technologies and the schemes of the Government of India the scope of human intervention is decreased and consequently the monetary intervention."