Due to foggy conditions in various parts of the country, a total of 24 trains are expected to arrive behind schedule in Delhi on Thursday. The Northern Railway reports that four trains are running approximately 4 hours late, while four other trains are likely to be delayed by about 2.15 hours. The Ajmer-Katra Pooja Express is running approximately 6 hours late. In addition, 13 trains are running behind schedule by around 1-1.15 hours. The India Meteorological Department (IMD) has forecasted that dense fog will persist in isolated pockets of northwest India for the next 3-4 days.