Excise Tariff Revision expands manufacturing definition and reclassifies goods, altering ad valorem duty structure across schedules. The Finance (No. 2) Act, 1962 amends the Central Excises and Salt Act, 1944 by expanding the statutory manufacture definition to include conversion, labelling, re packing and other treatments that render patent or proprietary medicines, cosmetics and toilet preparations marketable, and by comprehensively revising the First Schedule: substituting existing items, inserting new tariff headings and explanatory notes, and prescribing revised specific and ad valorem excise duties for numerous categories including petroleum derivatives, medicines, plastics, metals, textiles and consumer appliances.