Delhi Pollution: AQI level crosses 400 in Anand Vihar & Narela

The pollution level in Delhi reached the \"very poor\" category. The Air Quality Index has crossed 400 in several areas of the National Capital. Anand Vihar, Narela recorded AQI beyond 400. AQI between 0 and 50 is \'good\', 51 and 100 is \'satisfactory\', 101 and 200 is \'moderate\', 201