India’s Delhi, Pakistan's Lahore, Nepal’s Kathmandu, and India's Kolkata occupied the second, third, fourth and fifth places with AQI of 212, 199, 174 and 172, respectively ...
Gurgaon: A thin layer of haze shrouded the city on Thursday after the air quality index (AQI) recorded at 257, sharply plunged into the ‘poor' categor.