Answer of this question

Since you have got registered in GST on September  you need to file  Gstr-3b for the month of september on or before 10^th october 2017.

Even if there is no sale and purchase GSTR-3B nil return need to be filled.

Please follow the link below

https://www.teachoo.com/6641/1948/How-to-fill-GSTR-3B-Return/category/GST-Return-Format-/

• Total 3 returns to be filled in a month 

     Gstr-3B,  Gstr-1 and Gstr-2

1. Gstr-3B due date is 20^th of next month

1. Gstr-1 ( due date for the month of july is 10^th October  and for september still to be notified)

1. Gstr-2 due date for the month of july is 31^th October and  for september still to be notified.

• For upload of invoices you can also use GST Offline Tool .

https://www.teachoo.com/6367/1948/Download-Offline-Tool-Utility-for-GST-Return--GSTR1/category/GST-Return-Format-/

Written on Oct. 4, 2017, 4:25 p.m.