Completely true. But don't know will it happen or NOT..........
SER is a Complete Freight Zone and for that they have been allotted WAG-9/9H to TATA but chances of WAP-7 allotment in SER is very minimal as it has a "Special Interest" in Tap Changers for Mail/Exp and happy to drive Orthodox Locos for Mail/Exp since ages. This Rule is less likely to be changed unless any major change in"Org Hierarchy" is made in SER's Electrical/Mechanical Dept/GM level to induct 3-Phaser for mail/exp of SER originating ex HWH and other junctions of this Zone.