New Delhi, Feb. 1 -- The air quality in the national capital remained in the 'very poor category' on Sunday morning, with the overall Air Quality Index (AQI) recorded at 318 around 8 am, according to the Central Pollution Control Board (CPCB).

The India Meteorological Department (IMD) has issued a yellow alert for the national capital, warning that isolated areas may experience thunderstorms accompanied by lightning and gusty winds of 30-40 kmph. Similar conditions are expected across neighbouring Haryana and Chandigarh. In Haryana, Karnal experienced a hailstorm early in the day.

The IMD stated that the rainfall signalled the beginning of an active weather phase, with thunderstorms, lightning, gusty winds, and hail likely to affect sev...