Tax paid under the CGST and SGST heads through a clerical error...

Tax paid under the CGST and SGST heads through a clerical error may be appropriated towards the corresponding IGST liability where the entire liability was discharged within the prescribed period. Although Section 77 does not expressly address this payment error, its underlying principle avoids requiring the taxable person to make a duplicate payment and then pursue a refund. Interest should not apply where the required tax has already been remitted, albeit under incorrect GST heads. Appropriation may be made on application, with a refund application filed if required procedurally.