As of now its ECoR and timings wise 3 rakes. They require 4 3AC coaches and 9 SL coaches additionally as Vskp Dakshin has 5 rakes - 5 2AC 5 3AC and 15SL 3 sets of 4GS are running with link which are enough. If they want to save one rake then the rakes have to be transferred to SCR with primary maintenance at KCG which require 1 3AC and 1 SL