law: Indian Easements Act, 1882
  37. Extinction by dissolution of right of servant owner
  When, from a cause which preceded the imposition of an easement,
  
  the person by whom it was imposed ceases to have any right in the servant
  
  heritage, the easement is extinguished.
  Exception: Nothing in this section applies to an easement
  
  lawfully imposed by a mortgagor in accordance with section 10.
  Illustrations
  (a) A transfers Sultanpur to B on condition that he does not
  
  marry C. B imposes an easement on Sultanpur. Then B marries C. B’s interest in
  
  Sultanpur ends, and with it the easement is extinguished.
  (b) A, in 1860, let Sultanpur to B for thirty years from the
  
  date of the lease. B, it 1861 imposes an easement on the land in favor of C,
  
  who enjoys the easement peaceably and openly as an easement without interruption
  
  for twenty-nine years, B’s interest in Sultanpur then ends, and with it C’s
  
  easement.
  (c) A and B, tenants of C, have permanent transferable interests
  
  in their respective holdings. A imposes on his holding an easement to draw
  
  water from a tank for the purpose of irrigating B’s land. B enjoys the easement
  
  for twenty years. Then A’s rent fall into arrear and his interest is sold. B’s
  
  easements is extinguished.
  (d) A mortgages Sultanpur to B, and lawfully imposes an easement
  
  on the land in favor of C in accordance with the provisions of section 10. The
  
  land is soled to D in satisfaction of the mortgage debt. The easement is not
  
  thereby extinguished.