Wrong enter igst in place of cgst & sgst in gstr 3b return

A user mistakenly paid IGST instead of CGST and SGST in their GSTR 3B return. They are seeking advice on whether they can claim a refund for the wrongly paid IGST, especially since they have no interstate sales. The consensus is that a refund is possible, or the amount can potentially be adjusted against CGST liabilities if the return hasn't been finalised and the funds are still in the cash ledger.