M. Nagaraj v Union of India (2006): Reservation in Promotions and the Limits of State Power
Date Published

M. Nagaraj accepted the constitutional amendments on reservation in promotion, but only on conditions. The state must show data, and it must protect efficiency.
The decision, M. Nagaraj & Others v. Union of India & Others, was delivered on 19 October 2006 by a five-judge Bench: Y.K. Sabharwal CJI, K.G. Balakrishnan, S.H. Kapadia, C.K. Thakker and P.K. Balasubramanyan. S.H. Kapadia, J. authored it. It is reported at (2006) 8 SCC 212 and AIR 2007 SC 71.
A note on the title: the plan mentions a "creamy layer test." The source text I could read does not clearly set out a separate creamy layer test or a "compelling reasons" test. The creamy layer idea appears mainly in the discussion of M.G. Badappanavar. This post follows the source.
What was challenged
The petitioners challenged the Constitution (Seventy-Seventh, Eighty-First, Eighty-Second and Eighty-Fifth Amendment) Acts. These added Articles 16(4A) and 16(4B), changed Article 335, and allowed reservation in promotion with consequential seniority.
They argued that the changes reversed earlier Supreme Court rulings and violated the basic structure, especially equality. The government said the amendments were enabling provisions that left the framework of Articles 16(1) to 16(4) intact.
Read Also: Bhim Singh v State of J&K (1985)
The questions
· Was Parliament's amending power enlarged to remove constitutional limits?
· Is equality part of the basic structure?
· Are the "catch-up" rule and consequential seniority constitutional requirements?
· What limits apply to the extent of reservation?
What the Court held
· Equality is a basic feature of the Constitution.
· Articles 16(4) and 16(4A) are enabling provisions, not fundamental rights to reservation.
· Reservation must rest on quantifiable data showing backwardness and inadequacy of representation, while preserving efficiency under Article 335.
· The catch-up rule and consequential seniority are not constitutional requirements.
· The amendments were not shown to destroy the basic structure, and the way the state uses the power remains open to judicial review.
The reasoning
Equality as a basic feature. Relying on Minerva Mills and Indira Gandhi's Election case (Indira Nehru Gandhi v. Raj Narain), the Court held that equality is essential to democracy and forms part of the basic structure. It applied the test used in the Election case, which looks at the feature's place in the constitutional scheme, its object and the effect of denying it.
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Enabling power. Equality under Article 16(1) belongs to individuals, while reservation serves groups. The state's power depends on backwardness and inadequacy of representation, which must be identified with data. The Court noted that vesting a power may be valid even when a particular use of it is arbitrary. It also said: "reservation is necessary for transcending caste and not for perpetuating it."
Balancing. Justice to backward classes, equity for others and efficiency are variables that must be balanced case by case. Merit is context-specific, and the state is best placed to define and measure it.
Extent of reservation. The 50% ceiling is a useful benchmark but not absolute. The cadre strength is the unit, the roster must be post-specific rather than vacancy-based, and reserved candidates may compete for general posts.
Catch-up rule. These are judicially evolved ideas from service law, not constitutional axioms. Following Virpal Singh Chauhan, they are not implicit in Article 16(1) or 16(4). So removing the catch-up rule does not destroy the equality code.
Earlier cases. The Court reviewed Virpal Singh Chauhan, Ajit Singh (I) and (II) and M.G. Badappanavar. It held that those decisions concerned the weight given to roster-point promotions, a matter for the appropriate government, and did not decide the validity of the amendments. Badappanavar applied creamy-layer reasoning to say consequential seniority for roster promotees could violate equality.
The source text was truncated, so the final operative order is not fully visible here. Check the full judgment for the exact order.
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Exam use
A tidy answer to "Is reservation in promotion a fundamental right?" is no, because Articles 16(4) and 16(4A) are enabling. The state must collect data on backwardness and inadequacy, and respect Article 335.
FAQs
When was M. Nagaraj v. Union of India decided?
On 19 October 2006, by a five-judge Constitution Bench.
Who authored the judgment?
S.H. Kapadia, J.
What amendments were challenged?
The Seventy-Seventh, Eighty-First, Eighty-Second and Eighty-Fifth Amendment Acts.
Which new Articles did those amendments add?
Articles 16(4A) and 16(4B).
Is equality part of the basic structure?
Yes, the Court held equality is a basic feature.
Are Articles 16(4) and 16(4A) fundamental rights?
No. They are enabling provisions.
What must the state show before providing reservation in promotion?
Quantifiable data on backwardness and inadequacy of representation, along with maintenance of efficiency under Article 335.
Is the 50% ceiling absolute?
No. The Court called it a useful benchmark, not absolute.
Are the catch-up rule and consequential seniority constitutional requirements?
No. They are judicially evolved concepts.
Conclusion
M. Nagaraj gave the state a power and a duty at once: the power to provide reservation in promotion and the duty to justify it with data. Learn the five holdings and the Bench.
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