This Train has to reach before 6pm @Palani to allow Palani express to depart at right time towards Chennai. Otherwise train will be holded at Chatrapatti Station .
Similarly in the morning, Amritha express will wait for Palani express to reach Palani and then Amritha will depart towards Madurai.
In...
more... MOST cases, In the Morning as well as in the Evening we can see both the trains at Palani station.