GSTR 9 filed with incomplete data

siva andhavarapu (ca final) (388 Points)

26 May 2022  

One of my friends filed GSTR 9 for Fy17-18 recently. Later on he found that he filed it with incomplete data. Simply he just clicked on compute liabilities and filed. So he didnt give the itc breakup.Column no.4 and 8 is showing difference of full ITC. So how to rectify it or any other option for him to change it now?.