The Noida authority on Thursday said that it has selected three private agencies and one non-government organisation (NGO) to clean the city. The three private agencies will be engaged in the collection of solid waste and the treatment of construction waste, one agency will mechanically sweep arterial roads and 40-year-old NGO Adarsh Sewa Samiti will help in developing civic sense among the general public, officials said. The authority said the four agencies have been finalised as part of its initiative to clean the city under the central government’s swachhta mission programme. The NGO will be paid ₹4.68 crore to spread awareness about solid waste segregation among residents and also help make the city open defecation-free. AG Enviro Infraprojects private limited (Anthony Waste management group) has been finalised for the door-to-door collection of municipal solid waste,and the storage and transportation of the same to the landfill site for disposal. “The authority will pay ₹1,400 per tonne of waste. The authority has agreed to pay ₹306.60 crore for the job for 10 years. The agency will remove existing garbage storage points outside residential areas and develop its own mechanised transfer stations to ensure the waste does not stink in any area,” RK Singh, officer on special duty, Noida authority, said. The authority will also collect user charges from residents. User charges have been set in the range ₹25-150 per month. The authority has finalised Ramky Enviro Engineers Limited for the treatment of the city’s construction and demolition waste. It will work on the private-public-partnership concept and follow the build, operate and transfer model, under which a facility is transferred to the government after a certain period.“We have signed a contract with this agency for 15 years. The agency will set up a plant in Sector 140 along Noida-Greater Noida Expressway that will treat 300 metric tonnes of construction waste daily. The agency will make bricks or tiles out of the treated construction waste. The agency has the onus of selling the recycled products and earn revenue,” Singh said.The authority will pay ₹497 per tonne for collecting construction and demolition waste from the city. It will spend ₹81.3 crore on this system. The authority has finalised another agency, Chennai MSW Private Limited, that will be engaged in the mechanical sweeping of arterial roads. The motive behind the mechanical sweeping is to reduce air pollution caused due to the mixing of dust with air, officials said. “At present, the authority cleans a 68km stretch on different main roads with the help of machines. But now, under the new arrangement, the authority will mechanically sweep and wash 93.89km stretch of road with water. The roads include Master Plan 1, MP2, MP3, service lanes along the Noida Expressway, parts of Dadri Road and some stretches in sectors 74, 75, 77, 78 and 117 among others. We will spend ₹28.79 crore for five years on mechanical sweeping,” Singh said.