The National Green Tribunal banned entry of trucks into Delhi in November 2017 after air pollution rose to alarming levels. Though the ban has been lifted, movement of trucks in Delhi are subject to the state of air pollution (Photo by Prasanna Mohanty)

The National Green Tribunal banned entry of trucks into Delhi in November 2017 after air pollution rose to alarming levels. Though the ban has been lifted, movement of trucks in Delhi are subject to the state of air pollution (Photo by Prasanna Mohanty)