Central Excise Act
(containing basic provisions of Excise)
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Central Excise Tariff Act
(containing rates of Excise)
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Annual Union Finance Acts
(Annual Budgets in which various changes in Excise are made)
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Rules like
Central Excise Rules, 2002: (Containing Different rules regarding payment/registration etc)
Central Excise Valuation (Determination of Price of Excisable Goods) Rules, 2000:
(Rules determining value of goods)
CENVAT Credit Rules, 2004
(containing details of input cenvat)
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Various notifications
(Schemes of Government declaring various schemes/exemptions etc)
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Circulars
(These are issued by CBEC to its various Excise Officiers,These help in uniformity in charging taxes)
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Trade Notices
(Trade notices are issued by Central Government for clarification on different matters)
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Case Laws
(Various cases decided by Supreme Courts and High Courts on various question of law)