actually it better to avoid any logical explanation to all this ZBTT exercise, imagine the backlash anyone of us would have faced here had we suggested the new route of 2649/50 KSK ? but RB did it, LTT-HW was trailing TN all along which didn't go well with its "fans" and TN also invited wrath of so many "fans" of Mewar for the OT, now they proposed 130 for all trains in NCR leading to what gain ?, SBC Rajdhani will still rule the section, can IR magically advance the arrival of all these trains..no..was it just a gimmick ?, i mean who cares in the middle of the night if the train is doing 130 or 50 ?