TT was never revised after slip discontinuation. Before covid there used to run a 6 coach slip to Katihar which was detached at Barauni. So 1 hr halt was given for attaching loco and decoupling at the required place. In the reverse direction, THE TATA (then it was CPR TATA) used to arrive daily before the slip. The slip halted at another PF for about 5-10 mins and then it was moved further. It was then shunted back to get attached to CPR TATA.