India's pollution control authority has classified the air in Delhi as "severe plus", after the city passed 450 according to its measurements on Monday morning.

A successful execution of these 10 measures is expected to bring down PM 2.5 levels to 72 μg/m3 and PM 10 levels to 120 μg/m3

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

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.

Air pollution chokes New Delhi every winter, but this year's smog has already derailed everything from transport and road work to schools.

Delhi is battling one of its worst pollution crises, with the Air Quality Index (AQI) crossing hazardous levels in several areas, reaching as high as 634 in Ashok Vihar. The government has implemented a 50% work-from-home policy and GRAP Stage IV restrictions,

Delhi's new action plan to combat rising pollution includes a ban on non-essential trucks, school closures, and remote work.