The National Green Tribunal (NGT) on Tuesday slapped Rs 50 crore fine on the Delhi government for not following its order to shut the stainless-steel pickling units in residential areas as they fall under the prohibited list of industrial activity. Hearing a petition filed by an NGO, All India Lokadhikar Sangthan, a bench headed by NGT chairperson Justice Adarsh Kumar Goel slammed the Arvind Kejriwal-led Aam Aadmi Party (AAP) government for not closing the industrial units despite the green court’s clear directions.