Central Tax Notifications: Notification No. & Date of Issue Subject 13/2017-Central Tax,dt. 28-06-2017 Seeks to prescribe rate of interest under CGST Act, 2017 12/2017-Central Tax,dt. 28-06-2017 Seeks to notify the number of HSN digits required on tax invoice 11/2017-Central Tax,dt. 28-06-2017 Seeks to amend Notification no 6/2017-Central Tax dt 19.06.2017 10/2017-Central Tax,dt. 28-06-2017 Seeks to