Can't VB be a separate category all together? Let Rajdhani, Duronto and Shatabdi be made to stay the way they are.
VB can create its own brand as Semi-High Speed service connecting major economic centers .
Still...
more... not clear if its going to replace all 'Rajdhanis/Shatabdis/Durontos' or some ones?
If its gonna be a type of Rake as Tejas has now been and Rajdhani having Tejas rake have been named as 'Tejas Rajdhani Express'.