Jab ICF thi poori tab 17hours flat tt tha tab tez thi and ab slow and reason suggested is that tracks pe congestion badh gaya hai and departure and arrival time ko additional slack. But given the highest priority given to Rajdhani by every zone, dont see why the slack cant be reduced to make it more time saving. Agar Mission Raftaar/ZBTT fastest train ko nahi mil raha to yeh sahi baat nahi