22 April 2019
Please help us to rectify, we found miss match in GSTR 3B and GSTR 1, In Aug 2017 Months GSTR - 3B return we have reported excess Supply of Rs 97011/- CGST - 8731 and SGST-8731 and too we have claimed excess ITC of CGST Rs. 15949 and SGST - 15949.
23 April 2019
You can rectify it in GSTR 9 Annual return. First make the reconciliation for all months in GSTR 3b , GSTR 1 and GSTR 2A (for ITC) and fill the GSTR 9 taking annual figures from all GSTR 1 and GSTR 2A and pay the liability if any in GSTR 9.