Cold wave conditions claimed seven lives in North India even as thick fog disrupted normal life in the region.
In capital Delhi, the maximum temperature was recorded at 16.2 degrees celsius, five less than normal, while the minimum was 7 degrees celsius, one less than the ususal.
Seven persons died in the past 24 hours in different parts of Uttar Pradesh as cold wave conditions prevailed across the state.
While three deaths were reported from Barabanki district, two persons died in Muzaffarnagar and one each in Hardoi and Bijnor districts, official sources said in New Delhi on Tuesday.
According to the Met office, maximum temperature was below normal by 5 to 12 degrees celsius in many parts of the state.
Cold conditions prevailed over some parts of the state, it said, adding, the weather was mainly dry over the state.
Night temperatures rose in Meerut division and fell in Varanasi division. The temperature was above normal in Bareilly, below normal in Meerut, Kanpur and Varanasi and normal elsewhere.
The lowest minimum temperature in the state was 3.4 degrees celsius recorded at Fatehgarh.
A thick blanket of fog enveloped most parts of Punjab, Haryana and the Union territory of Chandigarh on Tuesday disrupting normal life and hitting air, rail and road traffic.
MeT department officials said that the fog was responsible for reduced visibility in the region and resultantly, several trains and flights were either cancelled or delayed by hours.
The condition was no better on the roads where motorists were forced to switch on their headlights even as vehicular traffic moved at a snail's pace due to reduced visibility.
Besides, tripping of power and low pressure of water supply also added to the woes of the people.
The minimum temperatures in the region, however, hovered between four notches below normal to 2 degrees celsius above normal, the MeT office said.
Narnaul was the coldest place in the plains of Punjab and Haryana with a low of 3 degrees celsius, three notches below normal.
And, while Hisar shivered at a low of 3.4 degrees celsius, four notches below normal, the minimum temperature at Bhiwani was 5 degrees celsius.
Among other places, Amritsar registered a low of 6 degrees celsius, two notches above normal followed by 7.1 degrees celsius at Ludhiana and 7.5 degrees celsius in Chandigarh, which was one notch above the normal.
In Jalandhar, on the other hand, the minimum temperature was at 8.5 degrees celsius, up by about five notches from yesterday.
Ambala reported a low of 8.1 degrees celsius, one notch above normal, while Patiala, too, saw a similar movement of the mercury with a low of 7.9 degrees celsius.
The MeT office has forecast a further drop in minimum temperatures in the region and said that poor visibility due to foggy weather would continue over the next 24 hours.