The India Meteorological Department issued an alert on Sunday for three-day intense cold wave conditions and fog over the northwestern part of the country.
The minimum temperatures are in the range of 1-5 degrees Celsius in the region, according to the weather agency.
Delhi and its neighboring states woke up to a chilly and foggy Sunday morning after a brief respite.
Reports said some flights scheduled to depart from the national capital were delayed due to low visibility and railway officials said at least 20 trains were running late.
xinhua
