Island Exp will be put on the Platform-2 of SBC at 17:30, 2hr 30min before the departure time itself. What is the need to put the trains 2-3hrs before the scheduled departure, instead some MEMUs/DEMUs can be run towards Bangarapet/Kolar/Dodballapur/Hosur.
Also I have seen Karnataka too by17:20 on PF-1, 2hrs before the departure.
I think SWR should try to become more efficient.