Indian Polity & Governance·Prelims Strategy

Union, State and Concurrent Lists — Prelims Strategy

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Version 1Updated 5 Mar 2026

Prelims Strategy

For Prelims preparation, focus on memorizing specific article numbers (246, 247, 248), exact number of subjects in each list (Union-100, State-61, Concurrent-52), and constitutional amendments affecting the lists.

Create a comprehensive chart of important subjects in each list with their entry numbers - Union List: Defense (1), Railways (22), Currency (36), Banking (45); State List: Police (2), Agriculture (14), Local Government (5); Concurrent List: Education (25), Criminal Law (1), Forests (17A).

Master the five exceptions allowing Parliament to legislate on state subjects (Articles 249, 250, 252, 253, and 246 clause 4). Understand key judicial doctrines through landmark cases: occupied field theory (Ch.

Tika Ramji case), pith and substance (State of Bombay v. F.N. Balsara), residuary powers (State of West Bengal v. Union of India). Pay special attention to recent amendments, particularly 101st Amendment's GST provisions and their impact on federal taxation.

Practice elimination techniques by understanding common traps: confusing subjects between lists, mixing up amendment numbers and years, and incorrectly attributing judicial doctrines to wrong cases. Focus on current affairs connections, especially center-state disputes over agriculture, digital governance, and environmental protection.

Use mnemonics for remembering list numbers and important entries.

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