I think SR should think about changing its timings. Speed up from TUP-CBE required. As its Shatabdi not much slack required. If people have many sentiments about the morning intercity then better start this little late and also train little speed up like 15 min. Else another stop at KPD helps to increase demand little bit. Now chennai emerging as IT city which made its costlier city and people can afford money for short trips.
If not make it Tambaram - MS - KPD- SA - ED - TUP - CBE. Surely it gets more demand than present demand.