To problem kya hai diesel engine me?2010 tak sapt kranti bhi to wap5 se chalti thi,par ab end to end emd se chalti hai.Sapt kranti eloco ke sath bhi punctual thi aur emd ke saath bhi punctual hai.Vaishali emd se chal rahi hai to kya problem hai.Emd wap loco se kam thori hi na hai.Jab eloco milna hoga tab mil jaayega.