India, Dec. 23 -- Delhi and the National Capital Region (NCR) woke up to another winter morning under a blanket of smog on Tuesday, with visibility in parts of Ghaziabad and Noida slipping to as low as zero. Visibility dropped sharply at Delhi's Indira Gandhi International Airport early morning, with official observations showing the general visibility at just 50 metres at 8:00 am IST.

Meanwhile, air quality slipping deeper into the 'severe' zone in the capital city. By 8 am, the Air Quality Index (AQI) stood at 414, data from the Central Pollution Control Board's Sameer app showed.

The hazardous air came alongside light foggy conditions across the city, making for poor visibility during early morning hours. Forecasts suggest little imm...