I think they can also look at rake share with CBE-BNC VB as well. However what I have heard is in both directions railways wants to opt for a schedule where in both directions train crosses CBE-PGT stretch only in the time window ( 6am-6pm) when speed limit is 60/65km/hr. From 6pm onwards till morning 6am all trains have restricted speed of 45km/hr hence the challenge of having an afternoon dep from Bangalore or ERS. Other option is to have 2 rakes which I dont think is easy to get approved