The video which is uploaded is Kamrup Express and the rake composition are 2 - SLR,
4 - GS, 3 - AC, 1 - PC, and 11 - SL which is similar to Kamrup Express. We do not have any information regarding change in RAKE composition of DBRG - KOAA EXP nither we have any information of adding Pantry Car. I will be surprised too that the whole rake is change without any prior information.
Yes it is not necessary that TKD will haul this train but this train has never been hauled...
more... by HWH shed because this train gets only loco link from 12436 RAJDHANI EXPRESS which arives DBRG at FRI 6:15 am and attach to DBRG - KOAA EXP.