Sir. In May 2019 we filed GSTR1 with an Invoice which was supposed to be not uploaded.. But wrongly uploaded and filed.. Can I make an amendment or delete it? How can I remove the Invoice
You can make amendments in GSTR 1 by putting 0 in that invoices in amendments section in next GSTR 1 and also reduce the output tax liability in upcoming GSTR 3b up to month of September 2020 return filing.
so from both place u have to reduce your sale value in GSTR 1 as well as output in 3B