CIRCULAR NO-128/2019-Generation and quoting of Document Identification Number (DIN) on any communication issued by the officers of the Central Board of Indirect Taxes and Customs (CBIC) to tax payers and other concerned persons.

Circular No. 128/47/2019-GST

No. GST/INV/DIN/01/19-20

Ministry of Finance
Department of Revenue
Central Board of Indirect Taxes and Customs
GST-Investigation Wing

Room No.01, 10th Floor,
Tower-2, 124, Jeevan Bharti Building,
Connaught Circus, New Delhi- 110001.

Dated the 23rd December, 2019


 All Principal Chief Commissioner(s)/ Chief Commissioner(s)/ Principal Director General(s)/ Director General(s)/ All Principal Commissioner(s)/ Commissioner(s) / Principal Additional Director General(s)/ Additional Director General(s)/ Joint Secretaries/Commissioners, CBIC.


Subject: Generation and quoting of Document Identification Number (DIN) on any communication issued by the officers of the Central Board of Indirect Taxes and Customs (CBIC) to tax payers and other concerned persons — reg.

Attention is invited to Board‘s Circular No. 122/41/2019- GST dated 05th November, 2019 that was issued to implement the decision for Generation and Quoting of Document Identification Number (DIN) on specified documents. This was done with a view to leverage technology for greater accountability and transparency in communications with the trade/ taxpayers/ other concerned persons.

2. Vide the aforementioned Circular, the Board had specified that the DIN monitoring system would be used for incorporating a DIN on search authorisations, summons, arrest memos, inspection notices to begin with. Further, a facility was provided to enable the recipient of these documents/communications to easily verify their genuineness by confirming the DIN on-line at In continuation of the same, the Board has now directed that electronic generation and quoting of Document Identification Number (DIN) shall be done in respect of all communications (including e-mails) sent to tax payers and other concerned persons by any office of the Central Board  of Indirect Taxes and Customs (CBIC) across the country. Instructions contained in this Para would come into effect from 24.12.2019.

3. Accordingly, the online digital platform/facility already available on the DDM’s online portal “” for electronic generation of DIN has been suitably enhanced to enable electronic generation of DIN in respect of all forms of communication (including e-mails) sent to tax payers and other concerned persons. On the one hand electronic generation of DIN’s would create a digital directory for maintaining a proper audit trail of communications sent to tax payers and other concerned persons and on:-


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