Real 'Horse Sense' Power: KJM WDG-3A #14615 hauls the minute 6 coach Marikuppam Passenger at about 60Kmph as it cruises past BYPL. This loco is used on this train for every single journey both up and down. It only changes to a KJM WDM-2 when the WDG-3A goes in for repair. BYPL/CSDR Bypass, 2004-07-12. By Naren Damodaran.