Usually I have seen ET, LKO Alcos on Tuesdays with the YPR-VSG train which has RSA/LSA with VSG-PNBE train. This I am not sure.
But whatever other zone Alcos come here, they use for shunting. Like at YPR - they use PUNE Alco that comes with SUR SF for various shunting activities.
So this too must have come with some train and is being used here for shunting till it returns.