Delhi's 24-hour AQI, recorded at 4 pm daily, stood at 441, data from the Central Pollution Control Board (CPCB) showed.

Air quality in northern India has worsened over the past week, with New Delhi's AQI recording a reading of 465, classified as "severe plus category", on Sunday evening due to unfavourable meteorological conditions,

After reaching a peak, Delhi’s AQI has remained in the ‘severe’ category for the fourth day in a row. Covered in a thick blanket of fog and pollution, the poor visibility has even caused many school to remain closed for the past few days.

Despite "severe" AQI, many in Delhi are choosing to step outside, continuing their daily routines in the city’s parks.