law: Code of Criminal Procedure Act, 1973
  
  429.Saving.-
  (1) Nothing in section 426 or section 427
  
  shall be held to excuse any person from any part of the punishment to which he
  
  is liable upon his former or subsequent conviction.
  (2) When an award of imprisonment in default of payment of a fine is annexed to
  
  a substantive sentence of imprisonment and the person undergoing the sentence
  
  is after its execution to undergo a further substantive sentence or further
  
  substantive sentences of imprisonment, effect shall not be given to the award
  
  of imprisonment in default of payment of the fine until the person has
  
  undergone the further sentence or sentences.