Extension of commencement date for e-way bill blocking and unblocking under Rule 138E, postponing its operational start. Extension of the commencement date for the facility of blocking and unblocking of e-way bills under Rule 138E of the Assam GST Rules, 2017: the State substitutes the previously notified date with a later date for bringing this facility into force, issued under section 164 of the Assam GST Act on the Council's recommendation and stating the notification is deemed to have come into force from the twentieth day of August, 2019.