Excess IGST paid on zero-rated cashew-kernel exports because of...

Excess IGST paid on zero-rated cashew-kernel exports because of a clerical GSTR-3B classification error remains refundable where export turnover and tax were correctly declared in GSTR-1. Incorrect reporting in the domestic-supply column may block automated Customs processing, prompting a second correctly reported payment and refund of only that later payment. Reconciliation establishing the original payment as excess supports refund, as retaining tax paid twice lacks authority of law. Procedural difficulties in GST refund processing cannot justify withholding the unrecovered original IGST payment.