Section 157 in The Haryana Motor Vehicles Rules, 1993
157. Advertisements and other markings on public service vehicles.
[Section 111]. - (1) No advertising device, figure or writing shall be exhibited on any public service vehicle save as may be permitted by the State Transport Authority by general or special order.(2)A public service vehicle when regularly used for carrying Government mail by or under a contract with the Indian Posts and Telegraphs Department shall exhibit in conspicuous place upon a flat or a plane, surface of the vehicle the words 'MAIL' in red on the white ground, each letter being not less than 100 millimetres, in height and of a uniform thickness of 20 millimetres.(3)Save as aforesaid, no motor vehicle shall display any sign or inscription which include the words 'MAIL'.
