Excise duty revisions update tariff entries across the First Schedule, changing ad valorem and specific rates for goods. Amendments substitute revised third-column entries in the First Schedule to the Central Excises and Salt Act, 1944, altering specific and ad valorem excise duties for listed items including salt-related entries, manufactured tobacco subcategories, certain liquids, and various goods. A replaced Item provides a new consolidated listing for rubber products with specified ad valorem rates for enumerated subcategories, while other Schedule entries are retariffed by substitution to adjust excise burdens.