A toxic haze enveloped India's national capital on Wednesday morning as temperatures dropped and pollution surged, reducing visibility in some parts and prompting a warning from airport authorities that flights may be affected.

Delhi and its neighbouring cities are experiencing pollution levels that are at least 30-35 times the safe limit recommended by the World Health Organization (WHO). Every year, De

Delhi typically sees a spike in air pollution during the festive season starting in October. After Dussehra celebrations in the second week of October, Delhi’s Air Quality Index

Delhi AQI soared to 452 by 11pm, falling in comfortably “severe plus” – the worst possible category within the AQI range

Delhi's air quality turned 'severe' for the first time this season on Wednesday, with the AQI soaring to 418. In comparison, the national capital's 24-hour average Air Quality Index (AQI) -- recorded at 4 pm every day -- stood at 334 on Tuesday.