- Aadhaar Authentication – Notification No. 62/2020 – CT dated 20th August 2020
- Notification No. 69/2019 – Central Tax dated 13.12.2019 – F. No. 20/13/01/2019-GST – GST Common Portal for e-invoice
- Notification No. 9/2018 – Central Tax dated 23.01.2018 – GST Common Portal and Portal for electronic way bill