Excess payment of cgst & sgst

Sir, when i was uploading the GSTR-1 return one bill i have entered wrongly i.e Taxable amount is 20000 for CGST & SGST supply, i entered 200000 & submitted . In 3B for that month i have paid SGST & CGST for 200000. now whin i reconcile i have paid Rs,. 18000 CGST & 18000 SGST actually i have to pay 1800 SGSt & CGSt respectively. Now i have ammende in GSTR1 correct value of the said invoice, in GSTR3b how can i get extra paid CGST & SGST amount please reply.