GST: Structure, Council, and What UPSC Keeps Asking

India's biggest tax reform since 1947 was implemented not with a bang, but with a midnight special session of Parliament on June 30, 2017. "One Nation, One Tax, One Market" was the slogan. The reality was more complex: dual GST, five rate slabs, a compensation promise to states, and a council that has met over 50 times in seven years. The GST Council has become the most consequential institution in cooperative federalism - it meets, argues, votes, and shapes the tax lives of 1.4 billion people.

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[TOPIC CLASSIFICATION]

Topic type: Taxation / Fiscal Federalism / Economy PYQ frequency: Very High. Appears in Prelims every year since 2017. Exam stage relevance: Prelims + Mains Primary GS Paper: GS 3 (Economy) and GS 2 (Federalism angle)

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[EXAMINER REASONING]

1. Trap: Confusing fiscal/monetary policy tools, budget terminology, or institutional mandates. Examiners test precise economic terminology.
2. Most confused: The distinction between revenue/capital expenditure, fiscal/monetary policy domains, plan/non-plan expenditure (legacy), GDP/GVA, WPI/CPI, FDI/FPI.
3. Key anchor: Constitutional provisions (Art 110, 112, 265, 266, 280, 293), institutional architecture (Finance Ministry, RBI, NITI Aayog, GST Council, Finance Commission, CBDT, CBIC, SEBI, IRDAI, PFRDA), and policy framework (FRBM Act, RBI Act, Banking Regulation Act, Companies...