M. Nagaraj v. Union of India

The story

For decades, India's reservation policy for government jobs sparked fierce debate—not just about entry-level hiring, but about promotions too. When Parliament amended the Constitution to let SC/ST employees get promoted with reservation, and even carry forward the seniority they would have earned without any delay, general-category employees cried foul, arguing this eroded the fundamental right to equality and violated the Constitution's unamendable 'basic structure.' The case reached a five-judge bench of the Supreme Court, pitting the state's duty toward historically marginalized communities against concerns about merit and efficiency in administration. The Court walked a careful middle path: it upheld Parliament's power to enable such promotions, refusing to strike down the amendments, but insisted this power could not be used blindly. Governments, it ruled, must show real evidence—that the community remains backward, that they're still underrepresented in that specific job cadre, and that promoting them won't damage the efficiency of public service. This meant no automatic entitlement; every reservation-in-promotion policy would need to pass this three-part test. The judgment tried to balance social justice with administrative accountability, though its practical application would spark further battles for years to come, most notably in the 2018 Jarnail Singh case which revisited how 'backwardness' should be measured for SCs and STs in this context.

The facts

Several constitutional amendments—77th, 81st, 82nd, and 85th—inserted or modified Articles 16(4A) and 16(4B) and altered Article 335 to enable reservation in promotions and consequential seniority for Scheduled Castes and Scheduled Tribes in public employment. These amendments were challenged as violating the equality code (Articles 14, 15, 16) and the basic structure of the Constitution. A five-judge Constitution Bench heard the matter to determine the validity of these amendments.

The question before the court

Whether the 77th, 81st, 82nd, and 85th Constitutional Amendments, which enabled reservation in promotion and consequential seniority for SC/ST employees, violated the equality principle and basic structure of the Constitution, and if valid, what conditions must the State satisfy before providing such reservation.

The holding

The Supreme Court upheld the constitutional validity of Articles 16(4A) and 16(4B) and the amendment to Article 335, holding that they did not alter the basic structure of the Constitution since they merely enabled, but did not mandate, the State to provide reservation in promotion. However, the Court held that before making such provision, the State must collect quantifiable data demonstrating (i) the backwardness of the class, (ii) inadequacy of representation of that class in the relevant cadre, and (iii) that such reservation would not adversely affect overall administrative efficiency as mandated by Article 335. These are constitutional limitations that the State must satisfy in each case; failure to do so would render the reservation policy invalid.

The principle it stands for

Enabling provisions granting reservation in promotion with consequential seniority to SC/STs are constitutionally valid as they preserve, rather than alter, the width of Article 16(4) without breaching the equality code's basic structure. However, any exercise of this enabling power by the State is conditioned on demonstrable proof of backwardness, inadequate representation, and maintenance of administrative efficiency, making judicial review of such state action permissible on these specific parameters.

Provisions this case shaped

• Art. 16Equality of opportunity in matters of public employmentinterpreted — Clarified scope of Article 16(4A)/(4B) enabling reservation in promotion.
• Art. 335Claims of Scheduled Castes and Scheduled Tribes to services and postsinterpreted — Held administrative efficiency under Article 335 to be a condition precedent for promotion quotas.
• Art. 14Equality before lawlimited — Reservation in promotion must satisfy equality-based conditions to avoid violating Article 14.