Several cities more polluted than Delhi: CPCB
According to recent Central Pollution Control Board (CPCB) data, Delhi stood sixth in terms of air pollution in January, with Muzaffarpur (Bihar) and Varanasi topping the list. The data compares the Air Quality Index (AQI) of 24 cities across India. WHO had earlier termed Delhi to be the most polluted city in the world in terms of air pollution.