A pedestrian wearing woolens amid low visibility due to a thick layer of fog on a cold winter morning, in New Delhi

Vehicles ply on a road amid low visibility due to a thick layer of fog. Around 15 flights were delayed and one flight was diverted due to bad weather, officials at the Indira Gandhi International Airport said

Commuters on a road amid low visibility due to a thick layer of fog on a cold winter morning. The weather stations at Lodhi Road, Ayanagar and Ridge recorded a minimum temperature of 3.6 degrees, 3.2 degrees and 3.3 degrees

People exercise at an open gym in a park amid low visibility. The Safdarjung observatory logged a minimum temperature of 3.8 degrees Celsius as against 1.9 degrees on Sunday

Around 29 trains and 15 flights have been delayed due to foggy weather, as per the official information. One flight was also diverted due to bad weather, informed the airport authority