Waste pickers along with environmentalists and civil society groups staged a march from Kudeshiya Park to the Lieutenant-Governor's office here protesting against the setting up of three waste-to-energy plants in the city. The protesters said the three incinerator plants at Okhla, Timarpur and Gazipur were being built with complete disregard to the public health concerns of the area residents. They said the livelihood of rag-pickers would be severely impacted as recyclable waste will be burnt. Also, the plant will emit hazardous pollutants, they alleged. Residents of Batla House, Jamia Nagar, Ghaffar Manzil, Abul Fazl Enclave and Noor Nagar have been protesting against the plant in Okhla.