A combination of winter chill, severe air pollution, and dense fog on Tuesday created a dire situation across the Delhi-National Capital Region (NCR). Authorities have issued an alert for extremely dense fog for two consecutive days, while the Air Quality Index (AQI) has exceeded 450 in several areas, raising serious health concerns.

The situation worsened significantly, with visibility dropping to zero in many locations on Monday night. This severely disrupted road, rail, and air traffic, causing delays and safety risks for commuters.