Railways Act, 1989
174. Obstructing running of train, etc.
If any railway servant (whether on duty or otherwise) or any other person obstructs or causes to be obstructed or attempts to obstruct any train or other rolling stock upon a railway,-
(a) by squatting or picketing or during any Rail roko agitation or bandh; or
(b) by keeping without authority any rolling stock on the railway; or
(c) by tempering with, disconnecting or interfering in any other manner with its hose pipe or tampering with signal gear or otherwise, he shall be punishable with imprisonment for a term which may extend to two year, or with fine which may extend to two thousand rupees, or with both.