paonta sahib record]
Hindustan Times, Shimla | By Navneet Rathore, Shimla
UPDATED ON OCT 29, 2019 10:10 PM IST
The industrial town Nalagarh, which recorded the highest AQI in the state in 2018, witnessed an improvement this year. In 2018, the AQI of Nalagarh was 181, while this year it was 92.