law: Special Marriage Act, 1954 
  18. Effect of registration of marriage
  
  under this Chapter
  Subject to the
  
  provisions contained in sub-section (2) of section 24, where a certificate of
  
  marriage has been finally entered in the Marriage Certificate Book under this
  
  Chapter, the marriage shall, as from the date of such entry, be deemed to be a
  
  marriage solemnized under this Act, and all children born after the date of the
  
  ceremony of marriage (whose names shall also be entered in the Marriage
  
  Certificate Book) shall in all respects be deemed to be and always to have been
  
  the legitimate children of their parents :
  Provided that nothing contained
  
  in this section shall be construed as conferring upon any such children any
  
  rights in or to the property of any person other than their parents in any case
  
  where, but for the passing of this Act, such children would have been incapable
  
  of possessing or acquiring any such rights by reason of their not being the
  
  legitimate children of their parents.