By the way..If it is reversed...Can't it be corrected easily at DNR-Ppta--PnBe..I believe that line is operational now...
As in for 12394, can halt it at DNR...Attach loco 2 at rear... Send it few kms towards PPTA...As soon as line converges towards PPTA (from Pnbe side)... Stop and use Loco2 to pull it back towards PNBE...