Official Question UPSC 2025
Solution & Analysis
Answer:
Master Constitutional Mechanisms of Centralization through logical deduction.
Which constitutional Article allows the Union Parliament to legislate on subjects strictly within the State List if the Rajya Sabha authorizes it?
Article 249.
Test-setters will include articles that seem vaguely related to states or external power (like Article 210 on State Legislature language or Article 260 on external jurisdiction) to distract from the core mechanics that actually alter the balance of power between Centre and State.
India's federalism is conditional; through mechanisms like Articles 201, 249, and 356, the Constitution provides the Union with a legal 'override switch' to revert to a unitary state whenever deemed necessary by the Centre.