THE RAILWAYS ACT, 1989 – Chapter XV – Section 166

166. Defacing Public Notices
If any person without lawful authority:-

(a) Pulls down or willfully damages any board or document set up or posted by the order of a railway administration on a railway or any rolling stock; or
(b) Obliterates or alters any letters or figures upon any such board or document or upon any rolling stock,

he shall be punishable with imprisonment for a term which may extend to one month, or with fine which may extend to five hundred rupees, or with both.

Forward reference⇒ Section 167