Instead of IGST by mistake paid as CGST & SGST while filing GSTR 3B in the month of Nov'17.

while filing GSTR 3B in the month of Nov'17 by mistake I paid 54000rs (300000*18%=54000)as CGST&SGST.Instead of showing in IGST
column by mistake.how can I rectify this,now I have to pay IGST,can I claim input tax credit of cgst&SGST paid wrongly?
please reply!!

Pay correct amount under correct head

claim ITC or refund of wrongly paid amount

Yes...
You can claim the Wrongly paid amount...