Covering 1578KM with SF TAAG with an AVG speed of 57KMPH with 42 Intermediate stations is highly impossible the train cannot maintain its punctuality if something is greater than the required. More over the GNT SC stretch is a single line stretch which is of approx 250KM, one of the Padmavati LHB Rake is been sent to SC, instead of TPTY there is a chance of moving the train PM back to SC.
There is even a possibility of running Sabari exp with reverse TT with PM at SC morning departure with OEM at TVC and then by night or evening back to SC