Why this train doesn't have 130 mps between DDU and GZB but runs with 130 MPS bw PNBE and DDU although this train had LHB coaches. Why NCR doing like this inspite being LHB stock why or else any slack issue? Same goes for Shram Shakti too running with 110 mps although being having LHB stock but trains like BP mail, Sikkim Mahananda, Farakka (Mail express type trains) given permission for 130 MPS. Yeh kya jadoogari hai??