Worst decision by SR.....Yesterday WAP 4 of pearl city express got failure and hence pearl city arrived late by 1 hr and hence other trains also started late from egmore and due to this failure pandiyan,nellai,pothigai arrived late to madurai and loco change is occuring now for those trains from electric to diesel....If a train is failed tat trrain shud be made a halt and it shud leave way to other trains but SR makes all other trains to halt and not allowing to overtake............