Bhilai WAG-5P was given as its loco failed.... So I guess it might have failed near BSP/RIG where the delay further increased to almost 6hrs from 4hrs 30mins...but a question arises that why was it delayed by more 1hr till it reached Hijili and Balasore...
Still it can't b confidently said that the loco failed in CG just because it got a BIA WAG-5..