Duty exemption for goods from export-oriented undertakings made from indigenous raw materials cleared to domestic market under tariff conditions. Notification exempts specified textile goods produced in export-oriented undertakings or free trade zones wholly from indigenous raw materials and cleared to the domestic tariff area from that portion of the aggregate excise duty exceeding fifty per cent of the aggregate duty, with that fifty per cent apportioned between Central Excise and Additional Duties in a two to one ratio; value is to be determined under section four of the Central Excise Act and tariff descriptions identify the covered fabrics.