law: Indian Telegraph Act, 1885
  10. Power for telegraph authority to place and maintain
  
  telegraph lines and posts
  The telegraph authority may, from time to time, place and
  
  maintain a telegraph line under, over, along, or across, and posts in or upon,
  
  any immovable property:
  PROVIDED that-
  (a) the telegraph authority shall not exercise the powers
  
  conferred by this section except for the purposes of a telegraph established or
  
  maintained by 16[Central Government], or to be so established or
  
  maintained;
  (b) the 16[Central Government] shall not acquire any
  
  right other than that of user only in the property under, over, along, across,
  
  in or upon which the telegraph authority places any telegraph line or post; and
  
  
  (c) except as hereinafter provided, the telegraph authority
  
  shall not exercise those powers in respect of any property vested in or under
  
  the control or management of any local authority, without the permission of
  
  that authority; and
  (d) in the exercise of the powers conferred by this section, the
  
  telegraph authority shall do as little damage as possible, and, when it has
  
  exercised those powers in respect of any property other than that referred to
  
  in clause (c), shall pay full compensation to all persons interested for any
  
  damage sustained by them by reason of the exercise of those powers.