Reservation in India: Articles, Commissions and Judgments
Notes on reservation in India for exams: Articles 15, 16, 330 and 338B, the Mandal Commission, Indra Sawhney, promotion quotas and the EWS quota of 2019.
By GK24 Editorial Team· Published · 6 min read

Reservation is the set of special provisions by which the Constitution of India allows the State to keep a share of seats in educational institutions, posts in public employment and seats in elected bodies for classes of citizens who have been kept out of them for centuries. It is not an exception grudgingly allowed to the right to equality; the Supreme Court has read Article 15(4), Article 15(5), Article 16(4) and the clauses added in 2019 as facets of equality itself, because treating unequals alike is as unfair as treating equals differently. For an examination, the topic is a map of articles, amendments, commissions and judgments, and almost every question comes from that map.
The constitutional basis
Article 14 guarantees equality before the law, Article 15(1) forbids discrimination on grounds of religion, race, caste, sex or place of birth, and Article 16(1) guarantees equality of opportunity in matters of public employment. The enabling clauses sit beside them. Article 15(4), inserted by the Constitution (First Amendment) Act, 1951 after the Supreme Court struck down communal quotas in State of Madras v. Champakam Dorairajan, lets the State make special provision for the advancement of socially and educationally backward classes and for the Scheduled Castes and Scheduled Tribes. Article 15(5), added by the Ninety-third Amendment in 2005, extends that power to admission in private educational institutions, aided or unaided, leaving out minority institutions. Article 16(4) allows reservation of appointments or posts for any backward class not adequately represented in the services of the State. Article 46, a Directive Principle, asks the State to promote with special care the educational and economic interests of the weaker sections, and Article 335 says the claims of Scheduled Castes and Scheduled Tribes shall be taken into consideration consistently with the maintenance of efficiency of administration.
| Provision | What it does |
|---|---|
| Article 15(4) | Special provision for socially and educationally backward classes, SCs and STs (First Amendment, 1951) |
| Article 15(5) | Reservation in admissions, including private institutions; minority institutions excluded (93rd Amendment, 2005) |
| Article 15(6) and 16(6) | Up to ten per cent for the economically weaker sections (103rd Amendment, 2019) |
| Article 16(4) | Reservation in appointments for backward classes inadequately represented |
| Article 16(4A) | Reservation in promotion with consequential seniority for SCs and STs (77th and 85th Amendments) |
| Article 16(4B) | Backlog vacancies carried forward are a separate class (81st Amendment, 2000) |
| Article 330 and 332 | Reserved seats for SCs and STs in the Lok Sabha and the state assemblies |
| Article 338, 338A, 338B | National Commissions for Scheduled Castes, Scheduled Tribes and Backward Classes |
| Article 340 | President may appoint a commission to investigate the conditions of backward classes |
| Article 341 and 342 | President notifies the Scheduled Castes and Scheduled Tribes; only Parliament may alter the lists |
From Kalelkar to Mandal: the OBC quota
Article 340 is the source of every backward classes commission. The first, appointed in 1953 under Kaka Kalelkar, submitted its report in 1955 and was set aside because its criteria were thought vague. The second, appointed in 1979 under B. P. Mandal, reported in 1980 and recommended twenty-seven per cent of central government posts for the Other Backward Classes, a figure chosen so that the total would stay within the fifty per cent limit the courts had laid down. The recommendation was announced for central services in 1990 and was immediately challenged. The quota in central educational institutions came a step later, through Article 15(5) and the Central Educational Institutions (Reservation in Admission) Act, 2006, which the Supreme Court upheld in Ashoka Kumar Thakur v. Union of India in 2008.
Indra Sawhney and the fifty per cent rule
Indra Sawhney v. Union of India, decided by a nine-judge bench in 1992, is the leading case. It upheld the twenty-seven per cent quota for the Other Backward Classes, held that a caste may be treated as a class once its social backwardness is shown, and ordered that the advanced among the backward, the creamy layer, be kept out so that the benefit reaches those who need it. It also said that reservation should ordinarily not exceed fifty per cent of the available seats except in extraordinary situations, that it belongs to entry into service and not to promotion, and that backwardness under Article 16(4) is social and educational, not economic alone. The fifty per cent figure had first been suggested in M. R. Balaji v. State of Mysore in 1963; the carry forward rule that breached it was struck down in T. Devadasan v. Union of India in 1964.
Reservation in promotion
Parliament answered the parts of Indra Sawhney it disagreed with by amending the Constitution. The Seventy-seventh Amendment of 1995 inserted Article 16(4A) to allow reservation in promotion for the Scheduled Castes and Scheduled Tribes; the Eighty-first Amendment of 2000 added Article 16(4B) so that backlog vacancies carried forward to a later year are treated as a separate class outside the ceiling of that year; the Eighty-second Amendment of 2000 restored the power to relax qualifying marks under Article 335; and the Eighty-fifth Amendment of 2001 added consequential seniority to Article 16(4A). In M. Nagaraj v. Union of India (2006) the Supreme Court upheld these amendments but required the State to show backwardness, inadequacy of representation and continued administrative efficiency before using the power. Jarnail Singh v. Lachhmi Narain Gupta (2018) removed the requirement of proving the backwardness of the Scheduled Castes and Scheduled Tribes, since the Presidential list itself establishes it, and applied the creamy layer test in promotions.
The EWS quota and the commissions
The Constitution (One Hundred and Third Amendment) Act, 2019 inserted Article 15(6) and Article 16(6), which let the State reserve up to ten per cent of seats and posts for economically weaker sections of citizens who are not covered by the existing caste-based quotas, the economic criteria being notified by the State. A five-judge bench upheld the amendment in Janhit Abhiyan v. Union of India in 2022 by a majority of three to two. Three constitutional commissions watch over the system: the National Commission for Scheduled Castes under Article 338 and the National Commission for Scheduled Tribes under Article 338A, separated by the Eighty-ninth Amendment of 2003, and the National Commission for Backward Classes, given constitutional status under Article 338B by the Hundred and Second Amendment of 2018. The same amendment inserted Article 342A for a central list of socially and educationally backward classes, and the Hundred and Fifth Amendment of 2021 made it clear that a state may keep and notify its own list.
Reservation in legislatures and local bodies
Seats are reserved for the Scheduled Castes and Scheduled Tribes in the Lok Sabha by Article 330 and in the state legislative assemblies by Article 332, in proportion to their population; there is no reservation for the Other Backward Classes in Parliament. Article 334 fixes the period for which those seats stay reserved, and it has been extended by amendment several times, the Hundred and Fourth Amendment of 2019 being the latest, which also ended the nomination of Anglo-Indian members. In the panchayats and municipalities, Articles 243D and 243T reserve seats for the Scheduled Castes and Scheduled Tribes in proportion to population, allow the state legislature to reserve seats for backward classes, and reserve not less than one-third of all seats and of the offices of chairperson for women.
Exam Point of View
Five question types recur. First, article matching: 15(4), 15(5), 15(6), 16(4), 16(4A), 16(4B), 16(6), 330, 332, 335, 338B, 340, 341 and 342A, where the common trap is to swap 15(4) with 16(4) or 338 with 338A. Second, amendment numbers and years: First (1951), 77th (1995), 81st (2000), 82nd (2000), 85th (2001), 93rd (2005), 102nd (2018), 103rd (2019) and 105th (2021). Third, commissions and chairmen: Kalelkar in 1953 and Mandal in 1979, with the report years 1955 and 1980. Fourth, case law: Champakam Dorairajan, Balaji, Devadasan, Indra Sawhney, Nagaraj, Ashoka Kumar Thakur, Jarnail Singh and Janhit Abhiyan, usually asked by what each decided. Fifth, the bench strength and the majority, such as the nine judges of Indra Sawhney and the 3:2 majority on EWS. Remember that Parliament alone may change the SC and ST lists and that there is no OBC reservation of seats in the Lok Sabha.
Important Facts
| Reservation in admissions | Articles 15(4), 15(5) and 15(6) |
|---|---|
| Reservation in employment | Articles 16(4), 16(4A), 16(4B) and 16(6) |
| First Backward Classes Commission | Kaka Kalelkar, appointed 1953, report 1955 |
| Second Backward Classes Commission | B. P. Mandal, appointed 1979, report 1980, 27 per cent for OBCs |
| Leading judgment | Indra Sawhney v. Union of India, 1992, nine-judge bench |
| Fifty per cent ceiling | Suggested in M. R. Balaji (1963), settled in Indra Sawhney (1992) |
| Promotion quota | Article 16(4A), 77th Amendment, 1995 |
| Consequential seniority | Article 16(4A), 85th Amendment, 2001 |
| EWS reservation | Articles 15(6) and 16(6), 103rd Amendment Act, 2019, up to ten per cent |
| EWS upheld in | Janhit Abhiyan v. Union of India, 2022, by 3:2 |
| NCBC constitutional status | Article 338B, 102nd Amendment Act, 2018 |
| State OBC lists restored | 105th Amendment Act, 2021 |
| Efficiency of administration | Article 335, relaxation of marks allowed by the 82nd Amendment, 2000 |
| Women in local bodies | Not less than one-third of seats, Articles 243D and 243T |
Practice MCQs on this topic
The B.P. Mandal commission was set up to study the reasons of backwardness of the:
- A.scheduled tribes
- B.scheduled castes
- C.rural women and children
- D.socially and educationally backward classes
Show answer
The Second Backward Classes Commission was appointed in 1979 under Article 340 of the Constitution, which empowers the President to appoint a commission to investigate the conditions of socially and educationally backward classes.
Read the full explanation →Which Article of the Constitution of India allows the State to reserve appointments or posts for a backward class not adequately represented in its services?
- A.Article 14
- B.Article 15(4)
- C.Article 16(4)
- D.Article 19(1)(g)
Show answer
It says that nothing in Article 16 shall prevent the State from making any provision for the reservation of appointments or posts in favour of any backward class of citizens which, in the opinion of the State, is not adequately represented in the services under the State.
Read the full explanation →The Constitution (One Hundred and Third Amendment) Act, 2019 inserted which clauses to provide reservation for the economically weaker sections?
- A.Articles 15(5) and 16(5)
- B.Articles 15(6) and 16(6)
- C.Articles 16(4A) and 16(4B)
- D.Articles 338A and 338B
Show answer
The 103rd Amendment Act of 2019 added clause (6) to Article 15 for reservation in admission to educational institutions and clause (6) to Article 16 for reservation in appointments, in each case up to ten per cent for the economically weaker sections of citizens who are not covered by the…
Read the full explanation →In Indra Sawhney v. Union of India (1992), the Supreme Court directed that which group be excluded from the benefit of reservation?
- A.The creamy layer among the backward classes
- B.All government employees
- C.Residents of metropolitan cities
- D.Candidates above forty years of age
Show answer
The nine-judge bench in Indra Sawhney upheld the twenty-seven per cent quota for the Other Backward Classes but held that the socially advanced members of those classes, described as the creamy layer, must be excluded so that the benefit reaches the genuinely backward; the same judgment laid down the fifty…
Read the full explanation →Article 15(4) of the Constitution, allowing special provision for backward classes, was inserted by which Constitutional Amendment Act?
- A.The First Amendment Act, 1951
- B.The Seventh Amendment Act, 1956
- C.The Forty-second Amendment Act, 1976
- D.The Ninety-third Amendment Act, 2005
Show answer
It was passed after the Supreme Court in State of Madras v. Champakam Dorairajan struck down a communal order reserving seats in colleges, holding that it offended Article 15(1); Parliament answered by adding clause (4) to Article 15, which permits special provision for the advancement of socially and educationally backward…
Read the full explanation →Which Constitutional Amendment added consequential seniority to the reservation in promotion under Article 16(4A)?
- A.The Seventy-seventh Amendment Act, 1995
- B.The Eighty-first Amendment Act, 2000
- C.The Eighty-second Amendment Act, 2000
- D.The Eighty-fifth Amendment Act, 2001
Show answer
It amended Article 16(4A) so that a government servant of the Scheduled Castes or Scheduled Tribes promoted under the reservation also keeps the seniority of the promoted post, which is called consequential seniority, and the change was given effect from 1995.
Read the full explanation →The National Commission for Backward Classes was given constitutional status under which Article?
- A.Article 338
- B.Article 338A
- C.Article 338B
- D.Article 339
Show answer
The Constitution (One Hundred and Second Amendment) Act, 2018 inserted Article 338B, which makes the National Commission for Backward Classes a constitutional body with the duty to investigate and monitor the safeguards provided to the socially and educationally backward classes; the same amendment added Article 342A for the central list…
Read the full explanation →Who was the chairman of the first Backward Classes Commission appointed in India?
- A.B. P. Mandal
- B.Kaka Kalelkar
- C.B. R. Ambedkar
- D.H. J. Kania
Show answer
The first Backward Classes Commission was appointed in 1953 under Article 340 with Kaka Saheb Kalelkar as its chairman, and it submitted its report in 1955; the report was not acted upon because its criteria for identifying backwardness were considered vague.
Read the full explanation →Under which Article may the President appoint a commission to investigate the conditions of backward classes?
- A.Article 338
- B.Article 340
- C.Article 341
- D.Article 342
Show answer
It empowers the President to appoint a commission to investigate the conditions of socially and educationally backward classes, the difficulties they face and the steps that should be taken to remove them, and both the Kalelkar Commission of 1953 and the Mandal Commission of 1979 were appointed under it.
Read the full explanation →Reservation of seats for the Scheduled Castes and the Scheduled Tribes in the House of the People is provided by which Article?
- A.Article 325
- B.Article 330
- C.Article 332
- D.Article 334
Show answer
It reserves seats in the House of the People, that is the Lok Sabha, for the Scheduled Castes and the Scheduled Tribes, the number being in proportion to their population; there is no reservation of seats for the Other Backward Classes in Parliament.
Read the full explanation →Which judgment of the Supreme Court upheld the validity of the reservation for the economically weaker sections?
- A.M. Nagaraj v. Union of India
- B.Janhit Abhiyan v. Union of India
- C.Jarnail Singh v. Lachhmi Narain Gupta
- D.Ashoka Kumar Thakur v. Union of India
Show answer
A bench of five judges decided it in 2022 and upheld the Constitution (One Hundred and Third Amendment) Act, 2019, which provides up to ten per cent reservation for the economically weaker sections, by a majority of three to two.
Read the full explanation →Frequently Asked Questions
Which Article allows reservation in government jobs?
Article 16(4). It lets the State reserve appointments or posts for any backward class of citizens which, in its opinion, is not adequately represented in the services under the State. Article 16(4A) adds promotion for Scheduled Castes and Scheduled Tribes and Article 16(6) adds the economically weaker sections.
What is the creamy layer?
The creamy layer is the advanced section among the backward classes which is kept out of the benefit of reservation so that it reaches the genuinely backward. It was ordered in Indra Sawhney v. Union of India (1992) for the Other Backward Classes, and Jarnail Singh (2018) applied the idea to Scheduled Castes and Scheduled Tribes in promotions.
Who headed the Mandal Commission and what did it recommend?
B. P. Mandal headed the Second Backward Classes Commission, appointed in 1979 under Article 340, which reported in 1980 and recommended twenty-seven per cent reservation for the Other Backward Classes in central government posts, keeping the total within the fifty per cent limit.
Which amendment introduced EWS reservation?
The Constitution (One Hundred and Third Amendment) Act, 2019, which inserted Article 15(6) and Article 16(6) allowing up to ten per cent reservation for the economically weaker sections who are not covered by the existing caste-based quotas. The Supreme Court upheld it in Janhit Abhiyan v. Union of India in 2022.
Can reservation exceed fifty per cent?
Indra Sawhney (1992) held that reservation should ordinarily not exceed fifty per cent of the available seats, and that only an extraordinary situation can justify crossing it. The limit applies to the vacancies of a year; backlog vacancies carried forward are treated as a separate class under Article 16(4B).
Who can add a caste to the list of Scheduled Castes?
The President notifies the Scheduled Castes for a state or union territory by public notification under Article 341 and the Scheduled Tribes under Article 342, but once the list is notified only Parliament, by law, can include a caste in it or exclude one from it.
Sources
- The Constitution of India, Articles 15, 16, 243D, 330, 332, 335, 338B, 340, 341 and 342A — Legislative Department, Ministry of Law and Justice
- The Constitution (One Hundred and Third Amendment) Act, 2019 — India Code, Government of India
- Report of the Backward Classes Commission, 1980 (Mandal Commission) — Government of India
- Indian Constitution at Work (Class XI), Chapter on Equality and Rights — NCERT





