yes unexpectedly it attains max speed in CR section! i.e NK-BSL
In high speed WCR-NCR-NR its slow. If KR, will also make some positive changes in speed definitely if its made a rajdhani , no matter its a long route as tvc arrives @ 12 noon or even 5 pm. but this will arrive in morning. When the Howrah Rajdhani herself can take longer via patna route a day. then why not this one? :) even DBRG Rajs take comparitively very longer routes.