IMD issues warning for dense fog conditions across parts of north India until January 10

IMD has warned of dense fog across parts of Delhi, Punjab, Haryana, Chandigarh, and Uttar Pradesh until January 10. Delhi experienced a cold wave, with a sharp drop in temperatures and reduced visibility. The AQI in Delhi stood at 326, categorized as 'very poor.' Over 300 flights at Delhi's airport were delayed due to low visibility.