Mistakenly issued credit note

jitendra patel (61 Points)

22 June 2021  
Respected sir,
by mistake we had uploaded 2 credit note in GSTR-1 for same bill and same party in the year 2020-21. In GSTR-3B filed ok.
now how can we rectify this mistake in may- 2021 GSTR-1. pls advise us.
thanking you.