23/08/2026
Can reservation in promotion continue without constitutional limits?
In Jarnail Singh & Others v. Lachhmi Narain Gupta & Others (2018), the Supreme Court refined the constitutional framework governing reservation in promotion for SCs and STs.
The five Judge Constitution Bench held:
1. No need to prove SC/ST backwardness afresh
The State need not collect quantifiable data to establish the backwardness of SCs and STs.
2. Inadequate representation must be shown
The State must collect quantifiable data demonstrating inadequate representation before granting reservation in promotion.
3. The data must be cadre-specific
Generic statistics are insufficient. Representation must be assessed in the relevant cadre.
4. Creamy layer principle applies
Socially advanced members of SC/ST communities can be excluded from reservation benefits in promotion.
5. Nagaraj survives, but is modified
The Court retained the framework of M. Nagaraj (2006) while removing the requirement to prove SC/ST backwardness.
The constitutional balance is the heart of the judgment:
Reservation advances substantive equality.
Constitutional limits protect equality of opportunity.
One-line memory formula
Nagaraj set the conditions. Jarnail Singh removed the need to prove SC/ST backwardness and applied the creamy layer principle to promotion reservations.
Leading Cases Series | No. 49
Know the Law. Understand the Constitution. Protect Rights.
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