gstr 9 cn entry

ankit (prop) (95 Points)

21 March 2019  
An Invoice was issued in jan 2018. Goods were returned in july 2018 and cn was issued in aug 2018. Cn details will be reported in coming gstr 1 of march 2019.
How will this cn be entered in gstr 9 of fy 1718.

Please help which table it should be reported in gstr 9 ?