GSTR9 ND DRC-03

while finalizing fy 17-18 gstr -9 i came to know that igst of rs 23 lakh excess credit taken which i have never reverse in fy 18-19 & cgst nd sgst total rs 21 lakh less credit taken which i have not taken this credit in fy 18-19 whether this means 21 lakh itc has been lapse. so my question now i want to pay this with drc 03 so should i pay igst 23 lakh or can i adjsut cgst nd sgct total rs 21 lakh which i have taken less credit nd pay remain 2 lakh