New Delhi, Oct. 12 -- Multiple road divisions have started floating tenders for the deployment of truck-mounted anti-smog guns, with the Public Works Department (PWD) set to deploy 200 such machines to control dust pollution across the city over the next three years, officials said The North-West Road division has floated a Rs.34.35-crore tender for 19 of these machines. The North division has also floated a tender for their procurement at Rs.28.93 crore, while the South East division issued a tender for hiring these machines at an estimated cost of Rs.14.46 crore. According to officials, the selected contractors will provide, operate and maintain the equipment during September 2026-June 2027, September 2027-June 2028 and September 2028-June 2029. The machines must be mounted on BS-VI compliant CNG or electric trucks with a minimum gross vehicle weight of 13,500 kg, officials explained, adding that the vehicles must not be older than January 2026 and should have water tankers with a capacity of at least 8,000 litre. The anti-smog guns must have a minimum horizontal throw of 30 metres under windless conditions, while the equipment must be capable of horizontal and vertical movement, as per the tender document, also seen by HT. The vehicles will also be required to have GPS-enabled tracking, front and rear cameras, road-washing headers and arrangements for washing trees. Contractors must ensure at least two trips during an eight-hour shift. Daily water-refilling receipts from authorised sources must also be submitted to qualify for payment, the tender states. Contractors will also have to install at least two 360-degree pan-tilt-zoom cameras linked to a centralised command and control centre, with recordings maintained for at least 30 days....