India, Dec. 31 -- The final morning of 2025 began on a challenging note for residents of Delhi-NCR as dense fog, biting cold and hazardous air quality severely disrupted normal life across the region.

A sharp dip in temperatures, coupled with near-zero visibility and elevated pollution levels, impacted road, rail and air traffic, causing widespread delays and inconvenience for commuters and travellers.

Minimum temperatures across the NCR hovered between 6 and 9 degrees Celsius, intensifying cold wave conditions. From the early hours, a thick blanket of fog enveloped the national capital, reducing visibility to dangerously low levels in several areas.

Key locations, including Anand Vihar, ITO, AIIMS, Ashoka Road, India Gate Circle and M...