law: Code of Criminal Procedure Act, 1973
  
  188.Offence committed outside India.-
  When an offence is committed outside India -
  (a) by a citizen of India , whether on the high
  
  seas or elsewhere; or
  (b) by a person, not being such citizen, on any ship or aircraft registered in India , he may be dealt with
  
  in respect of such offence as if it had been committed at any place within India at which he may be
  
  found:
  
  Provided that, notwithstanding anything in any of the preceding sections
  
  of this Chapter, no such offence shall be inquired into or tried in India except with the
  
  previous sanction of the Central Government.