DTA sale permission: application and certified Net Foreign Exchange computation required for export-linked domestic sales under FTP. ANF-6C sets out required information and certified calculations to obtain permission for DTA sale or advance DTA sale under the Foreign Trade Policy, including unit and licence details, itemised DTA dispatches, production and export figures, year-wise imported capital goods and raw material values, other foreign exchange outflows, and a certified Net Foreign Exchange computation, with mandatory Chartered Accountant/Cost Accountant and customs/excise/GST verification.