Terming the trinity of Geospatial Systems, Drone Policy and Unlocked Space Sector the hallmark of India's future economic progress, Union Science and Technology Minister Dr Jitendra Singh on Tuesday said that 3D Maps will be prepared for 100 Indian cities.

Under the government's SVAMITVA scheme, geospatial technology along with Drones will survey all the over six lakh Indian villages, he said at the first anniversary of the release of geospatial data.