The minimum temperature in the capital, Delhi, dropped to 1.4C early on Monday as parts of northern India were hit by a cold spell.
The weather department has warned that cold wave conditions are likely to continue over the next two days.
Delhi saw a cold snap just hours ago when the minimum temperature dipped to 1.9C.
India's weather department declares a cold wave when the temperature drops below 4C.
On Monday, Delhi experienced its coldest day of the season, with temperatures plummeting below 2C in several parts of the city.
The dip came after just a few days of respite when a western disturbance - a weather phenomenon that causes wind directions to change - had brought about a slight rise in temperature.
People sitting around bonfire to warm themselves during a cold winter evening on January 12, 2023 in New Delhi, India.
IMAGE SOURCE,GETTY IMAGES
Image captions,
The extreme cold has been particularly hard for India's homeless population
Cold wave conditions and foggy weather also prevailed in other parts of northwest India.
The India Meteorological Department (IMD) has predicted that intense cold wave conditions will continue over northwest and central India up until Wednesday, after which temperatures will increase marginally.
The weather department has also asked people to wear "several layers of warm woollen clothing", to "avoid or limit outdoor activities" and to also protect livestock from the extreme cold.