The air quality in Delhi plummeted on Tuesday post Diwali as residents flouted the Supreme Court-mandated time slots for bursting of firecrackers, even as the city government blamed the AAP dispensation in Punjab for the toxic haze over the national capital alleging forced stubble-burning on Monday night.

The city recorded its worst air quality on Tuesday since 2021, with PM2.5 levels reaching 488 micrograms per cubic metre in the 24 hours after Diwali, more than three times the pre-festival level of 156.6 micrograms per cubic metre.

In neighbouring Haryana too, the air quality deteriorated with the AQI falling in the 'very poor' category in many areas, including in Gurugram, while it was in the 'poor' category in most parts of Punjab.

According to an analysis of Central Pollution Contr

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