BNC also has got a issue with PF...only 2 PF which makes it more difficult. In SBC i have seen PF 2 is used to park Lalbag express and PF 4 used for ERS-SBC intercity exp.....so this train usually every day comes at PF 3 by default.
Since there is lot of slack between SBC-CBE, SWR is making full use of the same . Attached is the status for 13Dec (this is the usual pattern seen nowadays)