At least seven trains were cancelled, and 26 were running late due to shallow fog in northern India, a railway official said.
“The sky will remain partly cloudy during the day with mist in the morning,” an India Meteorological Department official said.
There is no rain forecast for a week, he added.
The humidity at 8.30 a.m. was 91 per cent and visibility stood at 1,000 metres.
The cancelled trains were the New Delhi-Alipurdwar Mahananda Express, New Delhi-Jalandhar Express, New Delhi-Howrah Poorva Express, Delhi-Jammu Tawi Puja Express, New Delhi-Rohtak Intercity, Rohtak-New Delhi Intercity and Delhi-Ferozpur Express.
According to the Delhi International Airport Limited (DIAL), no flights were delayed or cancelled.
Tuesday’s maximum temperature settled at 27.7 degrees Celsius, a notch below the season’s average, while the minimum temperature was 14.6 degrees Celsius, a notch above the season’s average.