| Chapter IX Payment of Tax 88. Identification number for each  transaction.- (1) A unique  identification number shall be generated at the common portal for each debit or credit to  the electronic cash or credit ledger, as the case may be. (2) The unique identification number relating to discharge of  any liability shall be indicated in the corresponding entry in the electronic liability  register. (3) A unique identification number shall be generated at the  common portal for each credit in the electronic liability register for reasons other  than those covered under sub-rule (2). |