ANNUAL Return Queryy

Mohammed Aziz Khokar (2 Points)

04 June 2021  
In F.Y2019-20, while filling GSTR3B of May19 Turnover with Tax Liability and ITC increased erroneously. Increased Output Tax is more than ITC amount i.e. output tax is increased by say Rs. 7500 and ITC increased with Rs. 5300. Now at the time of Filling GSTR 9 & GSTR 9C, this matter would come to our notice. Till Today, Mar 2021 GSTR 3B is Pending but all other GST returns are already Filled.
Please guide what treatment should be done in GSTR 9 & GSTR 9C for financial year 2019-20.
is any adjustment is required in Mar 21 GSTR 3B or any DRC-03 is required to file...??