Quantifiable data has become the constitutional currency of reservation policy. Discuss with reference to judicial pronouncements.

Articles 15(4) and 16(4) let the State make special provision for backward classes. Over three decades, the Supreme Court has made the State's reasoning testable in court by asking it to prove its case with measurable, recent, community-wise evidence. This has turned data into the main thing a quota must show to survive judicial review.

Judicial pronouncements that made data the test

• Promotions: M. Nagaraj (2006) required quantifiable data showing that SCs and STs are inadequately represented. Jarnail Singh (2022) held that this data must be collected cadre-wise, and that the Court cannot lay down a yardstick for "adequacy" [2].
• Above 50%: Jaishri Laxmanrao Patil (Maratha case, 2021) reaffirmed the Indra Sawhney ceiling. It struck down the Maratha quota because no extraordinary situation had been shown to justify crossing it [1].
• Local bodies: Vikas Kishanrao Gawali (2021) laid down a triple test for OBC seats: a dedicated commission, an empirical inquiry for each local body, and a 50% overall cap [3].
• Sub-quotas: the Vanniyar case (2022) struck down Tamil Nadu's 10.5% internal quota. The Court found it rested on 1985 data and on population share alone, with no basis for treating Vanniyars differently from other MBCs, which violated Articles 14 and 16 [4].

Why data-centrism is justified

• It keeps quotas tied to actual backwardness rather than political bargaining.
• It allows benefits to be shared out fairly within a category.
• The Census 2027 caste count, the first since 1931, could supply this evidence [5].

Limits and concerns

• No common standard: courts demand data but decline to say what "adequate" means, so policies are often struck down [2].
• Uneven rigour: Janhit Abhiyan (2022) upheld the 10% EWS quota without the same data scrutiny, which suggests the standard is applied unevenly [6].
• Poor data capacity: states lack reliable, up-to-date caste data, and self-declared caste carries a risk of false claims.

Overall, the judiciary has shifted reservation from being a matter of intent to one of evidence. The way forward is regular, transparent, community-wise surveys run by permanent backward class commissions, reconciled with Census 2027 data. This would make affirmative action both constitutionally sound and fair, in line with Article 14 equality and the substantive equality the Constitution promises.