The death toll due to the cold wave has mounted over 125 across the country.
Around 40 deaths were reported from Uttar Pradesh. Eight people died in Bihar and two deaths were reported from Haryana.
Bihar Chief Minister Nitish Kumar has ordered all schools to be closed for three days.
In Rajasthan, light showers led to a further dip in temperature with mercury dripping up to seven degrees in Pilani and Dholpur.
In Punjab, all schools have been closed till Jan 8 due to cold.
According to officials of the Meteorological department, the cold waves have swept Himachal Pradesh due to heavy snowfall in the upper reaches.
In Uttarakhand, rains and snowfall intensified the cold conditions affecting normal life.
Delhi recorded a minimum temperature of 9.6 degree Celsius, There was no disruption in flight operations at the Indira Gandhi airport.