Fog-hit trains run late by a day

However, officials said food supply is replenished and the trains cleaned at major stations. "Toilets are cleaned at major railway stations depending on the time of halt. It is being ensured that there is sufficient food stocked on the train," the official said.

Apart from these trains, nearly 50 others were reportedly running behind schedule on Friday. Northern Railway had to cancel 17 trains and partially cancel 23 trains.

Six-year low: 2.7°C recorded on Friday

New Delhi: Despite a bit of sunshine, the mercury on Friday dropped to the lowest in six years, with a minimum temperature of 2.7 degree Celsius, four notches below normal.

In January 2007, the mercury hit 2.6 degree Celsius, but since then the low has stayed around 4 degree Celsius. The all-time low was recorded in January 1901, at -0.6 degree Celsius and the second lowest in 2006 at 0.2 degrees Celsius.

And as the mercury dropped on Friday morning, dense fog continued to disrupt flights at Indira Gandhi International Airport. Around 4 am on Friday, the visibility was lower than 50 m and three international flights were diverted to other airports. The fog did not clear until 9.30 am, airport officials said.

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