law: Indian Forest Act, 1927
  23. No right acquired over reserved
  
  forest, except as here provided. – 
  No right of any description shall be acquired
  
  in or over a reserved forest except by succession or under a grant or contract
  
  in writing made by or on behalf of the Government or some person in whom such
  
  right was vested when the notification under section 20 was issued.