It was initially used to haul premium train services like the Rajdhani Express , Shatabdi Express and the Duronto Express .
It is the most successful passenger locomotive on the Indian Railways roster after the WAP 4 .
passenger locomotive was initially used to haul premium train services like the Rajdhani Express , Shatabdi Express and the Duronto Express .
It is the most successful passenger locomotive on the Indian Railways roster after the WAP 4 .