Amendment of old GSTR-1/-20-21

Dear sirs/madam,

I have filed GSTR1 for the month of
Nov. 2020, but one invoice related
to B2B was shown as B2C and recipient
did not get the credit of tax. Is it possible
for me to rectify along with GSTR-1 of
this month. Please reply.

Andrews from Cochin, Kerala