The AQI in Delhi-NCR is in the ‘severe plus’ category. AQI between 0-50 is considered “good”, 51-100 is “satisfactory”, 101-200 is “moderate”, 201-300 is “poor”, 301-400 is “very poor”, 401-500 is “severe” and above 500 is a “severe plus”.

The average air quality index (AQI) in Delhi early Tuesday was recorded to be 492 (as of 7 am). The AQI in Alipur, Anand Vihar, Bawana, Narela, Pusa and Sonia Vihar, meanwhile, touched 500, which is the maximum index (as per the Central Pollution Control Board).

Delhi's air pollution crisis worsens with AQI surpassing 1500, prompting GRAP-4 measures and flight advisories. Check the most polluted areas in the city.

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.

India's capital was left gasping this week as air pollution smog reduced visibility to near zero and raised air quality levels more than 130 times safe limits.

Delhi's Air Quality Index (AQI), as per ANI, spiked to 428 at 8 am, firmly placing it in the "severe" category, according to the Central Pollution Control Board (CPCB)