The green panel issued notice to the project proponent of Bawana plant while seeking its reply as to why it has not been made operational till date.
"Why are you (NDMC and project proponent) not commissioning the waste-to-energy plant ? We have been passing directions since last one year. People are suffering, waste is lying here and there but you are doing nothing. You people are funny," a bench headed by NGT Chairperson Justice Swatanter Kumar said.
The tribunal also slammed the municipal corporation for for burning of garbage in Rohini area here and directed it to submit a report in this regard.
"Why were you (NDMC) burning garbage in the open. You think you have issued public advertisements and your job is done. This won't do. Give us a report as to who is responsible for this," the bench said while posting the matter for next hearing on January 28.
It had also directed all municipal corporations of Delhi and Delhi Cantonment Board to put forward a proposal for collection and segregation of municipal solid waste.
The tribunal was hearing a plea by Sukhdev Vihar Residents Welfare Association praying for closure of Okhla waste-to- energy plant alleging that it uses illegal mass burning technology, causing air pollution.