Ludhiana: There is some good news for Ludhiana on air pollution front in winters as the latest report of the Centre for Science and Environment (CSE) .
Rain and strong winds helped clean up Delhi's air quality on Thursday when the Air Quality Index (AQI) slid to 177 in the "moderate" range from 392, which was "near severe" on Wednesday. Find out more about the improvement in air quality after a gap of over three months.