Gst itc reversed by mistake plz help

U CAN NOW TAKE ITC OF RS 10,464 IN THE MONTH OF SEPT 

sir I have filed tran 1 regarding transitional credit of vat . that credit was reflecting electronic credit ledger. but at the time of filing of July month gstr3b return again I have taken 50% of cgst and 50% sgst .then after electronic credit ledger amount was increasing.that time I understood wrongly taken.now what is the rectification