As many as 33 domestic and international flights were delayed as early morning fog hit Delhi and nearby areas.
With visibility dropping drastically, the dense fog also hit rail and road traffic. The visibility at 5.30am was below 20 metres and at 8.30am, it was recorded below 50 metres. Due to dense fog, several vehicles on the roads moved with their headlights on.
According to the Northern Railway, 41 trains were running late and one train was rescheduled due to the dense fog in an around the national capital.
The minimum temperature was recorded at 7.2 degrees Celsius, normal for this time of the year and 0.8 degrees more than Wednesday's minimum.
"The dense fog Thursday morning led to poor visibility. However, the sky in the day will be clear. The maximum temperature is likely to hover around 15 degrees Celsius," said an official of the India Meteorological Department.
Wednesday had seen the winter chill return to the Capital with fog severely disrupting rail traffic .
The maximum temperature also saw a sharp dip and settled at 13.1 degrees Celsius, seven notches below normal.
( With agency reports)