Spotted this train yesterday around 22.45 near Kanki...total No. of passengers=1 in all the 8 coaches...Hauled by some unknown shed WDG-3A.....slowly & steadily as my 07149 proceeded towards its next halt @ Hatwar...I saw a CONCOR rake parked @ loop line without any loco...that means DEMU had a loco failure & that WDG-3A from CONCOR was allotted to DEMU...overall huge wastage...Stop such unnecessary DEMU's allocate the rake to profitable routes of APDJ division.