Penalty for Incorrect filing of GST Returns I GSTR3B IGSTR1I GSTR4 IGSTR9I IFF By CA Satbir Singh | February 13, 2021 0 Comment (Last Updated On: February 13, 2021) Penalty for Incorrect filing of GST Returns I GSTR3B I GSTR1 I GSTR4 I GSTR9 I IFF ICA Satbir singh