Excise duty schedule revision expands commodity classifications and prescribes new ad valorem and specific duties for manufactured goods. Amendment revises the First Schedule of the Central Excises and Salt Act, 1944 by substituting and inserting multiple tariff entries, adjusting duties to specified ad valorem or specific rates, and reclassifying products by form, process and use. It creates new items for confectionery, food products, beverages, chemicals, synthetic rubber, office machines and metal manufactures, restructures coffee and tea duties to treat cured, instant and packaged forms distinctly, and qualifies several entries by manufacturing process and by duty on inputs where applicable.