Now for Ndls-Muv Superfast I can guarantee you that it do not get WAP-5 class loco everytime, sometimes it gets WAP-4 or WAP-7 so this train is not very regular as far as WAP-5 loco is concerned,Now basically why Ndls-Muv Superfast got WAP-5 was becoz when traction of Rewa Superfast was changed to complete diesel engine than WAP-5 loco which used to haul Rewa Superfast was basically idle and Ndls-Muv Superfast just got the benefit from that.