Advance Authorisation exemption for imported inputs permits duty relief subject to authorisation, bonds, and proof of export fulfilment. Exemption from customs and specified ancillary duties is extended to materials imported under a valid Advance Authorisation issued under the Foreign Trade Policy, 2023, provided the authorisation is produced at clearance, the imported materials match the authorisation's description and limits, and required bonds, securities or alternative proofs and certificates are furnished where exports obligations are not yet discharged or where tax credits or rebates have been availed. Restrictions apply to permitted ports, transfer of materials, timelines for export obligation discharge and re export of defective goods.