Provision for enhanced punishment in case of subsequent conviction for certain  crimes punishable under Chhattisgarh Excise Act 1915 is provided under: 

S. 45. Enhanced punishment after previous conviction. - If any person after having been previously convicted of an offence punishable under Section 34, Section 35, Section 36, Section 36-A, Section 36-B, Section 36-C or Section 40 or under the corresponding provisions in any enactment repealed by this Act, subsequently commits and is convicted of an offence punishable under any of those sections he shall be liable to twice the punishment which might be imposed on a first conviction under this Act: Provided that nothing in this section shall prevent any offence which might otherwise have been tried summarily under Chapter XXI of the Code of Criminal Procedure, 1973 (No. 2 of 1974), from being so tried.