I have received a GST Tax Invoice (Inter State - Purchase Bill) in the month of August, 2017.
And the supplier issued a credit Note (After Sale Discount) on March, 2018 with IGST. In the month of March I did not have ITC of IGST, CGST & SGST.
How can I show the IGST amount (with Credit Note) in GSTR 3B for the month of March, 2018?