Annual return for 2017-2018

31-01-2020 is the last date filing GSTR9 &GSTR9C.

31st Jan-20 is last date...

1. We have some invoices pertaining to 2017-18 which are not represented in GSTR-2A, do we claim it's ITC in GSTR-9 as we have already shown these invoices in GSTR-3B of relevant period.
2. What are the consequences for excess ITC claimed in GSTR-3B for 2017-18 and same would become part of Audit Report, now how to rectify in GSTR-9.