12 October 2020
A gst registered regular scheme dealer sales of two b2b invoices Missed reported November and December -2020 in gstr3b and gstr1 in f.y 19-20. Question: Dealer this missed two b2b invoicess reported columns number September-2020 in gstr3b and gstr1.
13 October 2020
You can report that in GSTR3B table 3.1 along with current outward Supply (add that in current outward Supplies).........In GSTR 1 you can add that invoice along with current month's invoice in B2B Column with original invoice date(i.e Nov, Dec 19)