yes i agree that it had LGD WAP4 from VSKP to GNT
but from past few months P4 is replaced with P7 from VSKP to GNT
recently P7 became very common in VSKP-BZA section for Prashanti, Mail, AP AC and many weeklies/passengers
P7 is also regular with Ratnachal, Godavari, Konark, East Coast in one/both directions
even...
more... Link is regularly getting P7 in BZA-VSKP direction