ITC Taken Twice For one invoice in GSTR3B

dear sir,

anyone please clarify in this group regarding the following mistake done at the time of filing gstr3b.

1. i have taken ITC(IGST) Twice for the same invoice value at the time of filing gstr3b for the month of July 2019 ? i.e. taking of ITC twice for one invoice

what are possible options available with me?

can I do the following

1.reversing of excess ITC taken at the time of filing of GSTR3b for the month of August 2019.

or

2.adjust the ITC not taken on old invoices.

any other options available let me explain anyone please....