bhai ap bol rahe ho ke alwar me loop line nahi hai.. is liye loco change nhi ho sakta.. bhai loco change from eloco to disel alwar me jarurat bhi kya hai.. loco change can be done at MTJ or AGC as already being done with Jaipur Allahabad Exp at AGC.. creator of this imaginary train has also mentioned only rake reversal at alwar and not mentioned about loco change.. aur fir agar ap sochte ho ki fir MTJ HSR via AWR, RE electrification ka kya fayda.. then eloco can pull this train upto RE (electrification comepleted) or HSR (when electrification got completed between RE and HSR).. fir batao kaha jarurat hai alwar me loco change ki.. only loco/rake reversal required at alwar and that can be done easily..