Section 116(2) in The M.P. Motor Vehicles Rules, 1994
(2)The State Transport Authority may, by general or special order, direct that vehicles plying as Express and Deluxe services shall be painted in such colours different from the colour of vehicles plying an ordinary service or may have such special markings, as the State Transport Authority may specify and no Motor Vehicle than those operating as Express or Deluxe service shall be painted or carry marking in the manners so specified.
