Form of Refund Application Calculation / Worksheet for refund Self Declaration/ undertaking All original challans evidencing payment of Vat with details of invoices. Original Charted Accountant Certificate Duplicate Bill of Entry (Importer’s Original-Copy) Original TR-6 Challan for payment of Custom Duty. Copies of purchase invoice & bill of lading. List containing invoice nos. & amount of VAT/CST paid on imported goods for which refund is claimed. Authority Letter. Copy of Notification No.102/2007 Customs dated 14.09.2007 Original VAT/CST deposited certificate issued by the VAT Department. Self attested photocopy of Agreement in case of High seas sales (if any). Self attested Duplicate/Carbon Copies of Sales Invoices (B/E No. must be mentioned on the Sales Invoices and following stamp must be their on the sales invoices)