Re-import of jewellery exempt from excise duty when exported under bond or LUT for exhibition or consignment and not sold. Re-importation of jewellery exported under bond or LUT for exhibition or consignment, where no sale occurred, does not attract Central Excise duty at re-import because excise arises on first sale; although a notification condition prescribes payment where duty was unpaid at export, that condition is inapplicable to unsold goods exported under simple LUT and such cases fall under a residual notification entry, so no duty is payable if other notification conditions are met.