Identification number for each transaction :
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 – Rule 4(1) of Payment Rules.
The unique identification number relating to discharge of any liability shall be indicated in the corresponding entry in the electronic tax liability register – Rule 4(2) of Payment Rules.
A unique identification number shall be generated at the Common Portal for each credit in the electronic tax liability register for reasons other than those covered under sub-rule 4(2) – Rule 4(3) of Payment Rules.