fog

Dense fog covers Delhi, rail traffic affected; visibility reduces to 100m

Delhi reels under cold wave, dense fog; temp plunges to 1.8 degrees Celsius

Cold wave, dense fog puts North India on red alert: What you should know

Passengers to face delays as 32 long-distance trains run late due to fog

LIVE: Over 335 trains delayed, 88 cancelled due to dense fog, says railways

How do planes take off, land in dense fog, and is Delhi airport prepared?

As fog engulfs Delhi, as many as 10 flights delayed due to low visibility

Cold wave sweeps North India, dense fog in Delhi-NCR; snowfall in Himachal