You should remove the both BBS Rajdhanis and Shatabdi....
Rajdhani are premier Trains who have EXCELLENT punctuality, Priority , Speed and Maintenance irrespective of the Zone.
We can't compare Normal/Ordinary Trains with Rajdhanis or Shatabdi...But BBS Duronto can be considered in this list for compare as its a
mixed type Duronto (Not a AC duronto).