I think you should see into ALL things instead of Blindly favoring ONE train.
See the ACTUAL reason..
/blog/post/1849176
That was my mistake....Sorry...Duronto's Loco was not failed but instead ahead running Amrapali's Loco got failed on Main Line. So thats why All Trains were FORCED to stop.
And...
more... when Sampoornkranti reached CNB till that time UP line was cleared up. Thats why 12393 reached on time but other all trains got delayed badly. Be it Poorva or Duronto or Unchahar.