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Safeguards for SC, ST and OBC communities are spread across Articles 15, 16, 330, 332, 335, 338, 338A, 338B and 340. The National Commissions for SC (Art 338) and ST (Art 338A) became separate constitutional bodies via the 89th Amendment (2003); the National Commission for Backward Classes (Art 338B) followed via the 102nd Amendment (2018). Reservation is capped at 50% (Indra Sawhney, 1992), with a 10% EWS quota (103rd Amendment) sitting outside that cap.
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