Jammu, Feb. 9 -- Fog protocol, which the Indian Railways brings into force for safe train operations, occasionally impacts the scheduled timetable of trains, Railway Minister Ashwini Vaishnaw informed Rajya Sabha in a written reply on Friday. "Foggy weather conditions affect normal operation of train services. During such weather conditions, for the safe operation of trains, fog protocol is implemented, which occasionally impacts the scheduled timetable of trains," Vaishnaw said while answering questions raised by Janata Dal (United) MP Ram Nath Thakur.

Thakur asked the minister to share "the percentage of Indian Railways trains that were affected due to foggy, cold wave and low visibility conditions in the month of January 2024" and "whet...