A thin layer of haze enveloped portions of the city, lowering visibility and causing the air quality index (AQI) to drop to a lower level

As recorded on Tuesday morning, the AQI of Anand Vihar, Ashok Vihar, Bawana, Jahagirpuri, Mundka, Rohini, Vivek Vihar, Wazirpur and Narela exceeded 500-mark.

Delhi woke up to yet another dawn with a blanket of toxic air on Wednesday. India’s national capital recorded an AQI of 426 in the “severe” category the morning after it witnessed the coldest night of

India’s capital region, Delhi, has virtually come to a halt as air pollution levels reached a “severe plus” category, creating what officials have described as a public health emergency.

Residents in India's northern states woke up to another day of poor air quality on Tuesday, as a layer of dense fog shrouded most of the region, and pollution in the capital Delhi remained severe. India battles air pollution every winter as cold,