"The drones will survey roads, drains and also high rise buildings under the Greater Chennai Corporation, Velumani, who also holds Rural Development and Implementation of Special Programme portfolio, he told reporters.
The World Bank funded Rs 6.4 crore project is expected to be completed in 120 days, he said after inaugurating the campaign, titled Preparation of base map using Geo-spatial Technique.'
The drones would cover the 426 square kilometres of the city during the campaign, he said.