ITC claim in wrong head

dear experts,
I have imported goods from China and paid IGST at the time of clearance of goods from customs.

while filling gstr-3b I have mistakenly claimed that IGST in all other ITC column instead of ITC on important of goods column.

now officer has issued me notice to pay that ITC because it is not showing in GSTR-2A.

please suggest what to do.