Dense fog and low visibility also caused 12 trains to be delayed in the national capital.
The minimum temperature recorded is four degrees below normal for this time of the year, and the national capital is expected to witness light rains today with thunderstorms and hail predicted for the next few days. Dense fog is also very likely over the next few days at isolated places in Delhi, according to India Meteorological Department.
The System of Air Quality and Weather Forecasting And Research (SAFAR) recorded at 12.25 pm on Wednesday the overall air quality of the National Capital Region as 'very poor', with the air quality index (AQI) at 266.
The maximum temperature in the national capital is likely to be around 20 degrees Celsius.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)