Wrong Tax head amount paid in gstr 3b

Actually my b2b intra state sales in November 2017 is 1,00,000 and tax cgst 2500,sgst 2500. But mistakenly I have entered in gstr 3b return and tax amount paid in igst completely 5000.but i have entered correct in gstr 1.plz suggest me how to treat this transaction in gstr 9