wrongly put taxable value in 3b

you can correct your taxable value in GSTR1

plz follow following as suggested:

1. File your GSTR 1 correctly
2. Put the mail to Greviance Cell or GSTN helpline referring the misake done by you
3. can reduce sale in your next 3b , if suppose in your next 3b your sale is 15 lac then show only 5 lac but show the Tax Liability as per 15lac only.


Note : 3b is a interim return form & Gstr 1 is your main Return form , moreover the sale in annual return is to be reported from GSTR 1 , so need not worry ☺️