law: Hindu Succession Act, 1956
  9. Order of succession among heirs in the Schedule
  Among the heirs specified in the Schedule, those in class I
  
  shall take simultaneously and to the exclusion of all other heirs; those in the
  
  first entry in class II shall be preferred to those in the second entry; those
  
  in the second entry shall be preferred to those in the third entry; and so on
  
  in succession.