Excise exemption for mosquito net fabrics added to tariff, granting nil duty treatment under specified headings. A new entry was inserted into Notification No. 7/2003-Central Excise by Notification No. 70/2003-CE (04/09/2003) adding mosquito net fabrics classifiable under tariff headings 52, 54, 55, 58 or 60 as exempt with nil excise duty and nil additional duty, thereby modifying the table of miscellaneous exemptions under the principal notification.