law: Indian Easements Act, 1882
  43. Extinction by permanent change in dominant heritage 
  Where by, any permanent change in the dominant heritage, the
  
  burden on the servant heritage is materially increased and cannot be reduced by
  
  the servant owner without interfering with the lawful enjoyment of the
  
  easement, the easement is extinguished unless-
  (a) it was intended for the beneficial enjoyment of the dominant
  
  heritage, to whatever extent the easement should be used; or
  (b) the injury caused to the servant owner by the change is so
  
  slight that no reasonable person would complain of it; or
  (c) the easement is an easement of necessity.
  Nothing in this section shall be deemed to apply to an easement
  
  entitling the dominant owner to support of the dominant heritage.