law: The Motor Vehicles Act, 1988
  19. Power 
  
  of  licensing authority  to disqualify  from holding  a  drivinglicence or 
  
  revoke such licence.
  Provided that  
  
  where the  driving licence  of a person authorizes him to  drive more than one 
  
  class or description of motor vehicles and the order,  made under  sub-section 
  
  (1), disqualifies him from driving any specified  class or  description of  
  
  motor vehicles, the licensing authority shall  endorse the disqualification upon 
  
  the driving licence and return the same to the holder.