We had supply under deemed export in month of Oct-17 under notification No. 40/2017 GST Rate is 0.10%.
While entering data in GSTR1 we have entered the same bill in B2B under 18% while editing amount of tax and manually entered @0.05 in CGST & @0.05 in SGST instaed of selecting Deemed Export option.
We have already filed the return.
Now how we will corrected the same transaction in future.
TaxTMI