law: Registration Act, 1908
  48. Registered documents relating to property when to take
  
  effect against oral agreements
  All non-testamentary documents duly registered under this Act,
  
  and relating to any property, whether movable or immovable, shall take effect
  
  against any oral agreement or declaration relating to such property, unless
  
  where the agreement or declaration has been accompanied or followed by delivery
  
  of possession 12[and the same constitutes a valid transfer under any law for
  
  the time being in force:
  PROVIDED that a mortgage by deposit of title-deeds as
  
  defined in section 58 of the Transfer of Property Act, 1882, shall take effect
  
  against any mortgage-deed subsequently executed and registered which relates to
  
  the same property.