Laser tech finds 33,000 alterations to buildings in Mumbai

At least 33,000 alterations have been made to the original plan of buildings across the city, according to a survey conducted by the Brihanmumbai Municipal Corporation (BMC) using the 360-degree Light Detection and Ranging (LiDAR) technology to identify the additional area being used by citizens.

https://www.hindustantimes.com/mumbai-news/buildings/story-UvBv3B5JmIvd9a21ScuCcM.html