For Going to Such Decisions They should check the Condition of Tracks. Fully Falltu Bakwaas News. Then Low MPS tracks Have to be Upgraded in IR.
For NFR all All Tracks to Upgraded
Which has Slowest Rajdhani Pair 12435/36 & 12235/36. Where success rate is Low. But It will Huge Hit For NJP HWH Shatabdi Express having 70 Kmph average Speed