GSTR9 Autofill figures are different than ITC of GSTR3B & GSTR2A ITC downloaded from site.

GSTR9 Query:

Trying to understand GSTR9 & 9C forms annual returns, there are following problems.

ITC auto filled in GSTR9 – in Sheet 6 ITC availed column 6A ITC as per GSTR3B is different from the amount mentioned in GSTR3B ITC sheet downloaded from site.

 Same is for GSTR2A – in GSTR9 sheet 8 other ITC column 8A ITC as per GSTR2A - amount in auto filled GSTR9 is different from GSTR2A ITC sheet downloaded from site.

Why these are different when both are from GST portal.

Please guide how to proceed, as these ITC auto filled figures are not editable in GSTR9.