law: Hindu Marriage Act, 1955
  29.Savings.-
  (1) A marriage solemnized between Hindus before the commencement
  
  of this Act, which is otherwise valid, shall not be deemed to be invalid or
  
  even to have been invalid by reason only of the fact that the parties thereto
  
  belonged to the same gotra or pravara or belonged to different religions,
  
  castes or sub-divisions of the same caste.
  (2) Nothing contained in this Act shall be deemed to affect any
  
  right recognized by custom or conferred by any special enactment to obtain the
  
  dissolution of a Hindu marriage, whether solemnized before or after the
  
  commencement of this Act.
  
  
  (3) Nothing contained in this Act shall affect any proceeding under any law for
  
  the time being in force for declaring any marriage to be null and void or for
  
  annulling or dissolving any marriage or for judicial separation pending at the
  
  commencement of this Act, and any such proceeding may be continued and
  
  determined as if this Act had not been passed.
  (4) Nothing contained in this Act shall be deemed to affect the
  
  provisions contained in the Special marriage Act, 1954 (43 of 1954) with
  
  respect to marriages between Hinds solemnized under that Act, whether before or
  
  after the commencement of this Act.