This is really a very good initiative for people travelling from MAS end towards stations beyond SBC, particularly suburban stations of SBC (Kengeri, Ramnagar, etc.)
One this that should be accepted is though it is a single train, it will literally run like two different trains, as most passengers will alight at SBC and new set of passengers will board from SBC. (on both ways).
I hope the cleanliness of compartments are maintained and passengers have some civic sense not to throw trash here and there, and it is easy for other...
more... set of passengers to travel.
All the Best.