law: Transfer of Property Act, 1882
  26. Fulfillment of condition precedent
  Where the terms of a transfer of property impose a condition to
  
  be fulfilled before a person can take an interest in the property, the
  
  condition shall be deemed to have been fulfilled if it has been substantially
  
  complied with.
  Illustrations
  (a) A transfers Rs. 5000 to B on condition that he shall marry
  
  with the consent of C, D and E. E dies. B marries with the consent of C and D.
  
  B is deemed to have fulfilled the condition.
  (b) A transfers Rs. 5000 to B on condition that he shall marry
  
  with the consent of C, D and E. B marries without the consent of C, D and E,
  
  but obtains their consent after the marriage. B has not fulfilled the
  
  condition.