Excise exemption amendment replaces tariff entries with an ad valorem duty for specified DMT and PTA items. The Government amends the annexed Table of an earlier Central Excise notification by substituting, in column (4), the entries against S. No. 1 and S. No. 2 with a uniform ad valorem tariff description, thereby changing the tariff description applicable to the exempted DMT and PTA items under the miscellaneous exemptions.