I feel 12453/12454 seems to be even more prioritized , 12440 finally cancelled for 30th December , because 12439 rake did not start on 28th Dec from Ranchi, though it had 1 day bufer time to fill runing lapses ,also at same time same rake was used compensate late running 12454/12453 . pathetic Railway Zonal politics. Travellers are paying price surging with 4 months Advance rEservation and finally train gets cancelled on last day. RNC division has old relation with controversies 12877/12878 garib Rath was initially scheduled to run through BKSC and everything was printed in Railway Time table , but at last moment due to some political effect train was moved to run via Daltonganj with no day via bksc, GMO