I have filed my GSTR 3b for March 2020 within time however I could not enter a small amount of outward supply then, which came to my notice now in the next financial year in the month of May 2020.
Can I rectify this mistake by including that amount of outward supply in the month of May 2020 (next FY) and what will be the interest on the same?
Also will the concession of interest rates that was announced for the lockdown period be applicable in my case?
