Operations of over two dozen Delhi bound trains have been affected due to the foggy weather condition. Northern Railway official has said that 26 trains are reported to be running behind the scheduled time. They include Patna Rajdhani Express, Bhubaneswar-Rajdhani Express, Poorva Express and other important trains.They have also announced cancellation of a few passenger trains from Thrusday originating from Delhi till the fog situation prevails.They are, Delhi-Ambala-Kalka-Delhi, Delhi-Saharanpur-Delhi, Hapur-Ghaziabad-Hapur, and Delhi-Shamli-Delhi.Met Department has, however, predicted that in a couple of days the foggy situation may improve. It has forecast foggy weather in the morning and clear sky in the day for on Thursday.