law: Indian Easements Act, 1882
  51. Revival of easements 
  An easement extinguished under section 45 revives (a) when the
  
  destroyed heritage is, before twenty years have expired, restored by the
  
  deposit of alluvion; (b) when the destroyed heritage is a servant building and
  
  before twenty years have expired such building is rebuilt upon the same site;
  
  and (c) when the destroyed heritage is a dominate building and before twenty
  
  years have expired such building is rebuilt upon the same site and in such a
  
  manner as not to impose a greater burden on the servant heritage.
  An easement extinguished under section 46 revives when the grant
  
  or bequest by which the unity of ownership was produced is set aside by the
  
  decree of a competent court. A necessary easement extinguished under the same
  
  section revives when the unity of ownership ceases from any other cause.
  A suspended easement revives if the cause of suspension is
  
  removed before the right is extinguished under section 47.
  Illustration
  A, as the absolute owner of field Y, has a right of way thither
  
  over B's field Z. A obtains from B a lease of Z for twenty years. The easement
  
  is suspended so long as A remains lessee of Z. But when A assigns the lease to
  
  C, or surrenders it to B, right of way revives.