New Delhi, June 1 -- The Centre is working to set up modern air-raid warning systems across India's vulnerable districts under the Air Raid Warning System (ARWS) project and has begun recruiting former Indian Air Force (IAF) officers with expertise in air defence operations to lead the initiative, according to officials aware of the matter. When complete, the project will ensure that all 244 vulnerable districts (mostly near the borders) have a standard, modern, and fully functional warning network to alert civilians in the event of aerial threats, including drones, missiles, and aircraft. "The project will ensure that there is a standard air warning system on the ground in accordance with what the civil defence manual mentions. The initiat...