SRC has no hand in this RSA. Otherwise everything would have been fine. As PM is done at Hatia, its giving WAG-5 to it's train ie. 22892/08628 which is coming to Howrah. From there the same loco is getting reversed and hauling as Purulia Express. SRC can't intervene as the rake belongs to RNC now. ADRA's request will be useless. Hatia will simply say "We don't have stock, 12827 is not of our duty." Only solution is either KGP and SRC both has to intervene and change the whole loco link chain or usage of pitlines at PRR which is yet to exist. Once a WAP7 starts hauling 12827 whole chain will be get upgraded link.