law: Railways Act, 1989
  56. Power to refuse to carry persons suffering from
  
  infections or contagious diseases. 
  (1) A person suffering from such infectious or contagious
  
  diseases, as may be prescribed, shall not enter or re main in any carriage on a
  
  railway or travel in a train without the permission of a railway servant
  
  authorized in this behalf. 
  (2) The railway servant giving permission under sub-section (1),
  
  shall arrange for the separation of the person suffering from such disease from
  
  other persons in the train and, such person shall be carried in the train
  
  subject to such other conditions as may be prescribed.
  (3) Any person who enters or remains in any carriage or travels
  
  in a train without permission as required under sub-section (1) or in
  
  contravention of any condition prescribed under sub-section (2), such person
  
  and a person accompanying him shall be liable to the forfeiture of their passes
  
  or tickets and removal from railway by any railway servant.