There is a big confusion on date –
Actual Date was – 28th September 17 (90 days from Appointed Date i.e. from 01st July 17)
As per one tweet – 30th September 17
As per recommendation during GST Council Meeting held on 09 September 17 – 31st october 17
But as per notification 34/2017 it talks about only Revised TRAN-1.
I tried to clear all the doubts related to Due Date of TRAN – 1 & Revise TRAN-1 taking reference of Rules, Press Release, Notifications, etc through a VIDEO (You Tube link is below), Hope this will clear all the doubts, Enjoy – https://youtu.be/q22Rkq9DwaU