New Delhi: At least 40 flights, scheduled to depart from Delhi's Indira Gandhi International Airport , were delayed due to dense fog, Airline sources said on Tuesday.The airport sources further informed that no flight diversions were reported till 7 am.

Due to bad weather in the capital, numerous domestic planes that were waiting to take off were delayed, and 18 additional flights that were supposed to land at the Delhi airport were also delayed.

Safdarjung in Delhi recorded a minimum temperature of 6.4°C while Palam recorded a minimum temperature of 7.5°C up till 8:30 am, both in the midst of a severe cold wave that was permeating the whole north Indian region. According to data from the India Meteorological Department, visibility in the Palam area was 50 metres, whereas it was 200 metres at Safdarjung (IMD).

Another chilly and foggy day greeted the nation's capital, which has been experiencing some of the coldest days in its recent history.

The visibility at Safdarjung is currently 200 metres, whereas it was 0 metres in Palam at 4.30 am, according to the metrological department.

As was the prediction, dense to very dense fog was observed across parts of Punjab, Jammu division, Northwest Rajasthan, Haryana, Uttar Pradesh, Chandigarh, Delhi, Bihar and Tripura.

Fog Affect Railway Services over 260 Trains cancelled, check details here

Cold Wave: Thick fog engulfs Delhi, air quality deteriorates