Extreme Temperatures
The majority of deaths were in the state of Uttar Pradesh. Rajasthan, Punjab and Haryana are among the other northern states badly hit.
Most deaths were among homeless and elderly people.
Heavy fog has disrupted flights and train services out of the capital, Delhi, and neighbouring states.
The capital Delhi is also affected by the cold spell, with temperatures dipping to 7C and fog disrupting flight schedules.
Dense fog has also affected train services and flights in Rajasthan, where temperatures fell to 3.8C.
An official from the India Meteorological Department said the cold weather would continue for a number of days.

A 49-year-old snowboarder was found dead in an avalanche of snow in the Lake Tahoe area Monday, officials said.
Ski resorts, meanwhile, reported near-record snowfalls and brisk business.
The Avalanche Center advised skiers and hikers to choose their routes carefully, particularly on steep back-country terrain, said Marvin Boyd of the National Weather Service in Reno. He said the Sierra snowpack is weak and vulnerable to collapse after a snowfall of nearly 5 feet since Friday.
On Monday, the body of snowboarder Steven Mark Anderson, 49, a resident of Hirschdale near Truckee, was found by a Nevada County sheriff's search dog beneath 2 to 3 feet of snow at the Donner Ski Ranch.

Traffic moves in the U.S. 41 By-Pass in Henderson, Ky., Wednesday, Dec. 26, 2012 as a snow storm moves through the area making travel treacherous.
Heavy snow and high winds prompted National Weather Service blizzard and winter storm warnings for the Ohio River Valley and into the Northeast. Approximately 37cm of snow was recorded at New Baltimore, Michigan, as the storm headed north and east. An estimated 200,000 thousand people are without electricity.
About 1,500 US flights were cancelled yesterday, according to FlightAware.com, a site that tracks flights. Some 170 flights also have been called off today, and several airlines waived ticket change fees for affected customers.
All four runways at Philadelphia International Airport were open, but some travellers still faced some cancelled flights.
The National Weather Service warned that between 30 to 45cm of snow was expected in northern New England, with snow falling through until tomorrow morning. The storm was accompanied by freezing rain and sleet, making driving treacherous, it said.
The agency said in a special weather statement that much of the province will be walloped by snow starting Wednesday afternoon as the outer reaches of a weather system making its way north from Kentucky crosses the border.
Meteorologist Arnold Ashton said the system will move on to deliver snow to parts of southern Quebec and New Brunswick on Thursday.
"It's the combination of snow and blowing snow that makes this particularly nasty," Ashton said.
Environment Canada said the areas of Dunnville and Niagara in southwestern Ontario and the stretch between Kingston and Cornwall in the east will bear the worst of the storm, getting 15 to 20 centimetres of snow.
The weather agency said other communities in those regions can expect up to 15 cm of snow, while central Ontario residents should get their snow shovels ready for 5 to 10 cm.
Airport spokeswoman Victoria Lupica said Wednesday evening that the airport had recorded about 200 cancelled flights due to the winter weather.
She said there have also been delays in arriving and departing flights, with arrivals delayed four hours or more.
The University Park airport in State College in central Pennsylvania said Wednesday night that it had closed due to the storm but planned to reopen Thursday.
Passengers and people coming to pick them up are urged to contact airlines to check on flight status, or check with the airport on its website (www.phl.org ) or toll-free flight information number (1-800-745-4283).
Source: The Associated Press
Tuesday saw temperatures setting a record low for the month of December, with Hokkaido's city of Furano reaching minus 28.4 degrees, the coldest ever recorded since monitoring began. Record lows were also made in Tokyo, at 6 degrees, and the prefectures of Tottori and Saitama with minus 8 degrees. Homes and offices in Japan very rarely have central heating systems, and windows are poorly insulated, making it sometimes difficult to keep warm in the winter. People instead rely on kerosene-powered space heaters, creating a high demand for oil. In areas where snowfall makes it difficult to drive, gasoline stations drive trucks around with tanks of fuel and long hoses, making deliveries so people don't even have to leave their homes.
The city of Monbetsu, also in Hokkaido, reported a meteorological phenomenon known as ice fog occurring on Tuesday. The meteorological agency says this takes place when the water vapors from the ocean rise and meet cold air on land to form thick, low-hanging clouds of very cold fog.
The two cross-country interstates meet near downtown Oklahoma City. Freezing rain in advance of a snowstorm slickened the highway overnight, and a semi-trailer jackknifed on a bridge over the Oklahoma River.

A woman walks past trees covered with heavy hoarfrost and snow on the bank of the Yenisei River, with the air temperature at about minus 26 degrees Celsius (minus 14.8 degrees Fahrenheit), outside Russia's Siberian city of Krasnoyarsk, December 24, 2012.
The cold weather that has Russia in its icy embrace has been causing all kinds of havoc. Flights and buses delayed and cancelled, many schools have been closed, and there have been power outages just when power is most needed.
In the town of Kyshtym, the Urals, 14,000 people are still waiting for the central heating to be restored. On Sunday a break in the central pipe left residents anxiously watching the red line on their home thermometers plunging as temperatures outside slid to -24C (-11F).
Just over the Urals, a state of emergency has been declared and over 2,800 people were evacuated from the village of Khovu-Aksy, the Republic of Tyva, temperatures there a lethal -38C (-36F). A helicopter was sent to pick up kids and women. Two days into the emergency, authorities are frantically repairing central heating pipes while most of the evacuees are staying with their relatives.
Little Rock Arkansas could get up to three inches. That last time more than an inch fell on Christmas Day was 1926.
Even Dallas, Texas, could see flurries for Christmas - though likely no accumulation. The last time Dallas saw snowfall on Christmas Day was 1997 - though a 2009 blizzard left several inches behind on Christmas Eve.
'Southern Oklahoma and Arkansas look like they're going to get slammed with some serious snow, strong winds -- four to eight inches in some places. It's a pretty powerful storm system,' Ted Ryan, a National Weather Service meteorologist in Fort Worth, Texas, told MailOnline.
Canada - Thousands of clients are without power across Quebec after a winter storm dumped 60 to 100 centimetres of snow in the Lanaudière and Laurentian regions.
Approximately 130,000 households were without electricity this morning, according to Sophie Lamoureux, director of regional affairs at Hydro Québec.
Lamoureux said that many Hydro Québec clients will have to wait until tomorrow evening before their power is restored.
The Laurentians is one of the most affected areas, where close to 77,000 people are without power. Many in the Lanaudière and Outaouais regions were also left in the dark.
Yesterday's heavy, wet snowfall was the main cause of the power outages, according to Lamoureux. She said the snow, combined with strong winds, brought down trees in heavily wooded areas in the Lanaudière region and the Laurentians.
She said Hydro Québec crews are working to restore electricity. They have also asked for extra assistance from other regions of the province that were less affected.