Due to dense fog, almost 100 flights have been disrupted in Delhi on Wednesday. “Due to bad weather (fog) for three days, over 100 flights are reported delayed from and to Delhi airport, some have also been diverted to the nearest airport,” a Delhi airport official said. Amid a busy year-end holiday season, the congestion at the airport in New Delhi was being tackled. In most parts of North India, there is dense fog due to which problems of air travelers increased. Over the past few days, poor visibility is affecting the northern parts of the country.