Seems like this train(16713) has lost its P7 link. For more than 1.5 month, i was observing the loco of this train and also on few week days. Only once it showed up with P7, rest all time it was P4.
Similarly is the case with PDY-MS Passenger. This train is now seen with P7 most of the time. In the same mentioned period, only twice i saw it with P1.