In response to Delhi's escalating air pollution, major universities and schools transitioned to online classes. Authorities enforced strict air quality measures as the Air Quality Index reached severe levels.

Northern India is grappling with a severe air quality crisis as pollution levels skyrocket across major cities. The situation is particularly dire in Delhi, Mumbai, and parts of Uttar Pradesh and Bihar, where the Air Quality Index (AQI) has reached alarming levels, posing significant health risks.

India's capital city of Delhi has virtually shut down as air pollution hit "severe plus" levels, according to Indian government officials in its pollution control authority.

Delhi recorded air pollution more than 17 times above an acceptable level as worsening smog triggered curbs on trucking and shuttered construction sites and schools.

A 24-hour average Air Quality Index (AQI) of 488 (severe) was recorded at 8am compared to 494 at 4pm on Monday, the joint-second highest ever in the Capital

As toxic air blanketed Delhi on Monday morning, the Air Quality Index (AQI) in several areas of the city crossed the 1500 mark. This alarming spike in pollution levels has made Delhi the most polluted city in the world,

At least 18 zones in the national capital recorded an AQI of over 450, falling in the ‘severe plus ’ category, CPCB data showed