bro, gorakhdham bhi pehle gonda WDM3 ke sath chalti thi,
aur bat rahi Bihar sampark ki, to wo Samastipur ke WDM-3D ke sath chalti hai, & usko LKO se WAP-7 mil jaata hai isliye usko compete hi nhi kiya ja sakta
and gorakhdham completes it full journey on same diesel loco.
KIND ATTENTION -
WDM...
more... 2 is MAX 2600 HP
&
WDM 3D is 3300 HP
(bihar sampark kranti is running with WDM 3D, agar WDM 2/3 se chalne lage to pata chale ki gorakhpur pahauchte pahauchte loco fail ho jaye, aur gonda shed se udhar lena pade.
And if you know/remember when bihar sampark kranti was introduced it was running on WDM-3, and its loco often got failed near gorakhpur, usually.
and then another loco was arranged of GONDA shed from gorakhpur,
and today also 12565,Bihar Sampark Kranti is Often Overtaken By 12555,Gorakhdham Express,
so gorakhdham express is a unique train in its zone and itself