Tariff rate revisions and unit reclassifications update excise duty entries and measurement units across multiple chapters. The Schedule amends the First Schedule to the Central Excise Tariff Act, 1985 by substituting new column (4) duty entries for multiple tariff items in Chapter 24 including ad valorem and specific per thousand duties, omitting one tariff item, and inserting a sub heading code. It also replaces unit descriptors across multiple chapters-substituting 'kg.' for specified headings, 'u' for numerous headings and items, and 'm' for heading 8544-thereby modifying tariff classification, measurement units and applicable duties.