The stretch needs more 3 phase locos dear.
secondly, WAP-5's have a issue in hauling 22+ coaches near ghat sections.
thirdly, AJNI WAP-7 are given to fewer HWH bound trains.
That's y WAP-4's/WAM-4's do the rest work followed by the WAG locos.
SER...
more... is trained to handle passenger based 3 phase locos, but it needs more in the fleet.