The timings itself were so bad especially that of SC - RJY.
And actually -Shatabdi between SC-RJY, even say SC-BZA would have failed around that 1999. It is well ahead of time considering the purchasing crowd in the area.
Even...
more... Now, shatabdi between SC-RJY would not get an encouraging response.
But a Jan Shatabdi / agressive ICE with 5-6 CC (just like BZA LPI ICE) would do.
2 options for that.
1) They can either extend the current LPI BZA ICE till RJY/CCT with originating changed to SC for PM.
(But as LPI BZA already has a wonderful patronage I genuinely feel that it shouldnt be extended)
2) CCT SC CCT with 5:00 am dep at CCT (close to BVC slot & ahead of Coromandal) and arrvl at 13:30 at SC, and return 14:00 dep at SC and 22:30 arrv at CCT would ease rush on Janmabhumi.