This is the 3rd post in Constitutional Law-I, Unit 3 — Post 1 covered the general equality principle in Article 14, and Post 2 covered Article 15's prohibition of discrimination on specific grounds; this post covers Article 16, which applies the same non-discrimination logic to one specific field: public employment.
Government jobs in India carry security, dignity, and social mobility that make access to them a matter of intense practical importance, and historically, entry into government service was often shaped by caste, religion, and similar factors rather than merit alone. At the same time, India's Constitution-makers recognised that centuries of social disadvantage meant that a purely formal, identical-treatment rule in hiring would simply preserve existing inequality rather than correct it. Article 16 addresses both concerns together — it guarantees equality of opportunity in public employment as the general rule, while expressly permitting the State to make reservations correcting historical under-representation.
Article 16's clause structure at a glance:
Clause (1) — there shall be equality of opportunity for all citizens in matters relating to employment or appointment to any office under the State.
Clause (2) — no citizen shall be ineligible for, or discriminated against in, any employment or office under the State on grounds only of religion, race, caste, sex, descent, place of birth, residence, or any of them. Note that this list is wider than Article 15's list — it adds "descent" and "residence" as prohibited grounds, since these are specifically relevant to public employment.
Clause (3) — only Parliament (not a State Legislature) may make a law requiring residence within a State or Union territory as a condition for certain classes of employment under that State/Union territory or its local authorities — an exception to clause (2)'s bar on residence-based discrimination.
Clause (4) — permits the State to reserve appointments or posts for any backward class of citizens that, in the State's opinion, is not adequately represented in State services.
Clauses (4A) and (4B) — permit reservation in promotion (with consequential seniority) for Scheduled Castes and Scheduled Tribes, and allow unfilled reserved vacancies of one year to be carried forward as a separate class of vacancies in later years, without counting against that later year's 50% ceiling. Added by the 77th Amendment (1995), 85th Amendment (2001), and 81st Amendment (2000) respectively.
Clause (5) — protects the validity of any law requiring that the head or a governing-body member of a religious or denominational institution belong to a particular religion or denomination.
Clause (6) — permits a separate, capped 10% reservation for Economically Weaker Sections not covered by clause (4), added by the 103rd Amendment, 2019.
Clause (4) is an enabling provision, not a mandate — it permits the State to reserve posts for a backward class it finds inadequately represented, but does not compel it to do so, and does not itself create a fundamental right to reservation. The scope, limits, and internal safeguards of this power were worked out comprehensively in the case below.
This case tested the validity of the Union Government's 1990 decision to implement the Mandal Commission's recommendation of 27% reservation for Other Backward Classes (OBCs) in central government jobs, in addition to the existing SC/ST reservation. A nine-judge bench, by a 6:3 majority (Kania C.J., Venkatachaliah, Pandian, Ahmadi, Sawant and Jeevan Reddy JJ. in the majority; Thommen, Kuldip Singh and Sahai JJ. dissenting), upheld the 27% OBC reservation, holding that caste can be a valid starting point for identifying backwardness, provided the "creamy layer" — the socially and economically advanced members of that caste — is excluded from the benefit. The majority also held that total reservations under Article 16(4) ordinarily cannot exceed 50% of available posts, save in extraordinary situations, and that Article 16(4), as it then stood, covered reservation only at the stage of initial appointment, not promotion. This last holding on promotions proved short-lived — Parliament responded with the 77th Amendment, inserting clause (4A) specifically to permit promotion-stage reservation for SCs/STs, which the case below then tested.
After Indra Sawhney ruled out promotion-stage reservation under the original Article 16(4), Parliament added clause (4A) to expressly permit it for SCs/STs, and clause (4B) to permit unfilled reserved vacancies from one year to be carried forward without eating into a later year's 50% ceiling. The constitutional validity of these new clauses, and the conditions under which they could be used, were tested in the case below.
A five-judge bench (Sabharwal C.J., Balakrishnan, Kapadia, Thakker and Balasubramanyan JJ.) upheld the constitutional validity of clauses (4A) and (4B), holding that they were enabling provisions that did not breach the basic structure of the Constitution, since they merely restored a power the State already had before Indra Sawhney's promotion-stage ruling. However, the Court held that before actually granting reservation in promotion, the State must first collect quantifiable data demonstrating the backwardness of the class, its inadequate representation in the relevant cadre, and that such reservation would not adversely affect the overall administrative efficiency required by Article 335. This "quantifiable data" requirement was later revisited in Jarnail Singh v. Lachhmi Narain Gupta (2018), where the Court held that the State need not separately prove the "backwardness" of SCs/STs for promotion reservation, since their backwardness is already conclusively established by their inclusion in the Presidential Scheduled Castes/Scheduled Tribes lists — but the requirements of demonstrating inadequate representation and protecting administrative efficiency, laid down in M. Nagaraj, continue to apply.
Indra Sawhney had held that reservation under Article 16(4) could not be based on economic criteria alone, since the provision was meant to correct social and educational backwardness, not poverty as such. The 103rd Amendment, 2019 responded by inserting an entirely separate provision — clause (6) — creating a distinct, capped 10% reservation for Economically Weaker Sections not otherwise covered by clause (4), whose validity was challenged and decided in the case below.
A five-judge Constitution Bench, by a 3:2 majority (Maheshwari, Trivedi and Pardiwala JJ. in the majority; Lalit C.J. and S. Ravindra Bhat J. dissenting), upheld the 103rd Amendment's EWS reservation as consistent with the basic structure of the Constitution, holding that reservation exclusively on economic criteria does not by itself violate the equality code, and that Parliament may create a new, separate category of beneficiaries distinct from those already covered under clauses (4) and (5). The dissenting judges held that excluding SCs/STs/OBCs from EWS reservation — even though many among them are equally poor — was itself discriminatory, and that basing reservation purely on economic criteria departed from Article 16(4)'s underlying purpose of remedying social and educational backwardness. The 3:2 split makes this one of the most closely-decided major reservation cases in recent years.
| Provision | Added By | Covers | Key Case |
|---|---|---|---|
| Clause (4) | Original, 1950 | Backward classes, initial appointment; 50% ceiling; creamy layer excluded | Indra Sawhney (1992) |
| Clauses (4A)/(4B) | 77th (1995), 81st (2000), 85th (2001) Amendments | SC/ST reservation in promotion, with carry-forward of unfilled vacancies | M. Nagaraj (2006); Jarnail Singh (2018) |
| Clause (6) | 103rd Amendment, 2019 | Economically Weaker Sections, capped at 10%, separate from clause (4) | Janhit Abhiyan (2022) |
Articles 14, 15, and 16 together establish equality as a general principle and its application to discrimination generally and to public employment specifically. The next post turns to a different technique entirely — rather than regulating how the State may classify or discriminate, Article 17 abolishes one specific social practice, untouchability, outright, without any exceptions or enabling provisions of the kind seen in Articles 15 and 16.
A State public service commission reserves 20% of posts in a department for a backward class it has found to be inadequately represented, after excluding the creamy layer of that class — this is a straightforward, valid exercise of Article 16(4), consistent with Indra Sawhney. Now suppose the same State tries to reserve 15% of promotion posts for a backward class (not SC/ST) in that department: this would not be valid, since clause (4A) — the only clause permitting promotion-stage reservation — applies only to Scheduled Castes and Scheduled Tribes, not to backward classes generally, a distinction that is easy to overlook but frequently tested.