At least 15 trains were cancelled, 28 delayed and nine rescheduled on Friday due to fog in several parts of northern India.
"There was moderate fog in the morning reducing the visibility to 500 meters. The sky will be partly cloudy during the day," an India Meteorological Department official said.
The dropping temperature led to reduced visibility, disrupting rail, road and air traffic in North India.
The minimum temperature was recorded at 11 degrees Celsius, three notches above the season's average.
Thursday's minimum temperature was recorded at 12 degrees Celsius, four notches above the season's average while the maximum temperature settled at 25.2 degrees Celsius, four notches above the season's average.
- With IANS inputs