New Delhi, Jan. 16 -- A thick blanket of dense fog covered large parts of North India on a chilly Friday morning, disrupting visibility across several cities and adding to the discomfort caused by the ongoing cold wave.

According to the Indian Meteorological Department (IMD), six stations reported zero visibility early Friday morning, with fog conditions categorised as 'very dense'. Amritsar, Adampur, and Pathankot in Punjab; Chandigarh; and Hindon, Sharanpur, and Varanasi in Uttar Pradesh reported zero visibility.

Other locations, including Varanasi in Uttar Pradesh and Jammu in Jammu and Kashmir, recorded visibility of around 200 meters under 'moderate' fog conditions. Kanpur and Gorakhpur in Uttar Pradesh reported visibility of 400 m...