As BGKT WDP4B #40073 pruodly curved out of Delhi Cantt station with a quite bulky rake of Double decker , a mishap took place whit the train. A blast sound came out of the motors while the coaches were in motion in front of my eyes . The LP has to apply emergency brakes at a speed of about 30-40kmph. The the LP and ALP came running towards that coach.. more officials came from the station. The coach was inspected by the officials and finally today's trial run till Jaipur being Cancelled. (Arjun Singh)