India, Dec. 24 -- The district woke up to dense smog on Tuesday morning, with visibility dropping to below 50 metres at around 7.30am across several major stretches, including Golf Course Road, Sohna Elevated Road, Delhi-Jaipur-Gurugram (NH 48) and the Dwarka Expressway, India Meteorological Department (IMD) officials said. According to the Central Pollution Control Board (CPCB) air quality bulletin issued at 4.00pm, the air quality index (AQI) remained in the 'very poor' category for the fifth consecutive day since Friday last week.

CPCB data showed that the AQI, which stood at 331 at 4pm on Monday, further deteriorated to 364 on Tuesday, continuing in the "very poor" range. Among the worst-hit monitoring stations was Sector 51, where p...