Sub-classification of Scheduled Castes

Polity & Governance glossary

Topic: Safeguards for Vulnerable Sections: SCs, STs, OBCs, Minorities, Women and Children · NCERT: Beyond NCERT

Meaning

Sub-classification of Scheduled Castes means a state splits its SC list into smaller groups, so that the most backward SC communities get a fixed or preferred share of the SC quota (Arts. 15(4) and 16(4)). The Supreme Court allowed it in State of Punjab v. Davinder Singh (2024). It overruled E.V. Chinnaiah (2004), and it requires every split to rest on empirical data (facts and figures collected for the purpose).

It matters because a few better-placed SC castes can take most of the quota. Sub-classification tries to share the benefit fairly within the SCs. It also raises hard questions about Art. 341, data and Dalit political unity.

Explanation

How it works

  • The base: each state has one list of SCs, notified under Art. 341. All castes on that list share one SC quota in jobs and education.
  • The problem: SCs are not homogeneous (not all alike). Some SC castes are far more backward than others.
  • In Andhra Pradesh, the Madiga community complained that the Mala community took most SC benefits.

  • In Punjab, Balmikis and Mazhabi Sikhs were seen as left behind.

  • The tool: the state groups SC castes by how backward they are compared with each other, called inter se backwardness. It then does one of two things:

  • gives a separate share of the SC quota to each group (Andhra Pradesh, Karnataka), or

  • gives one group first preference for part of the quota (Punjab's 2006 Act: 50% of the SC quota).

  • What does not change: the SC list itself. No caste is added or removed. Only the quota inside the list is shared out.

Conditions and limits (Davinder Singh, 2024)

  • Legal source: states may sub-classify SCs under Arts. 15(4) and 16(4).
  • Reasonable classification test:
  • an intelligible differentia, meaning a clear basis for putting castes in different groups;

  • a reasonable nexus, meaning a logical link between the grouping and the aim of the law.

  • Empirical data is required on:

  • the inter se backwardness of SC groups;

  • their representation in government services.

  • Political convenience is not a valid basis. Groups cannot be made just to please vote banks.

  • No 100% share: a state cannot reserve 100% of the SC quota for one sub-group.
  • Judicial review: courts can check every sub-classification and strike it down if it breaks the Constitution.
  • Creamy layer is not part of the ruling. Four judges urged a creamy-layer test for SCs and STs. The creamy layer means leaving better-off members of a group out of the benefit. These remarks are obiter (said in passing and not binding). They are not part of the ratio (the binding reasoning).

How states have designed it (after 2024)

  • Andhra Pradesh (2025 Act):
  • It places 59 SC sub-castes in 3 groups [3].
  • It shares the 15% SC quota as Group I 1%, Group II 6.5% and Group III 7.5% [3].
  • The basis is population, inter se backwardness and social cohesion [3].

  • A 200-point roster (a fixed order for filling posts), run in two cycles of 100, shares out posts among the groups, including backlog vacancies [3].

  • Karnataka (2025 Bill):

  • It places 101 SCs in Categories A, B and C [4].
  • It shares the 17% SC quota as A (16 castes) 6%, B (19 castes) 6% and C (63 castes) 5% [4].
  • The three Adi castes (Adi Andhra, Adi Dravida, Adi Karnataka) may choose Category A or B [4].
  • It is based on a one-man commission of retired Justice H.N. Nagamohan Das, which reported on 4 August 2025 [4].

In the Constitution and practice

  • Art. 341:
  • The President notifies the list of SCs for each state by public notification.
  • Only Parliament, by law, can add a caste to the list or remove one.

  • This is the main argument against letting states sub-classify.

  • Arts. 15(4) and 16(4): these allow special provisions and job reservation for backward classes. Davinder Singh treats them as the source of the state's power to sub-classify.

  • E.V. Chinnaiah v. State of Andhra Pradesh (2004, five judges):
  • Andhra Pradesh's 2000 Act had split SCs into four groups (A, B, C, D). The Court struck it down.

  • Reason: SCs listed under Art. 341 form one homogeneous class. Splitting them would mean tinkering with the Presidential list.

  • The Punjab dispute:

  • Punjab's 2006 Act gave first preference for 50% of the SC quota to Balmikis and Mazhabi Sikhs.
  • The Punjab and Haryana High Court struck it down in 2010, following Chinnaiah.
  • In 2020, a five-judge bench doubted Chinnaiah and referred the issue to a larger bench.

  • While the case was pending, the Union government said the issue was before a seven-judge bench in Civil Appeal No. 2317 of 2011. It also said it had set up a committee to examine complaints from particular SC communities [1].

  • State of Punjab v. Davinder Singh (1 August 2024):

  • A seven-judge bench decided 6:1 [S6-K][1].
  • It overruled Chinnaiah and allowed data-based sub-classification.

  • Dissent (Justice Bela M. Trivedi): the Art. 341 list is final. A state that sub-classifies is in effect changing the list, which only Parliament can do.

  • Union government's stand (August 2024):

  • The Union Cabinet said the Constitution has no creamy-layer provision for SCs and STs.

  • This repeats the long-held view that Art. 341 has no provision for excluding a creamy layer. At present there is no concept of creamy layer in SC/ST reservation [2].

  • State follow-up:

  • Telangana: passed an SC categorisation Act in 2025, based on a commission report.
  • Andhra Pradesh: A.P. Scheduled Castes (Sub-classification) Act, 2025. It was Bill No. 16, introduced on 23 September 2025, and is deemed in force from 17 April 2025 [3].
    • It says it does not add to, remove from or alter the Constitution (Scheduled Castes) Order, 1950. This respects Art. 341 [3].
    • It does not apply to Central Government posts or central educational institutions [3].
  • Karnataka: Karnataka Scheduled Castes (Sub-Classification) Bill, 2025. It was LA Bill No. 89 and is deemed in force from 25 August 2025 [4].
  • Haryana: has taken steps to sub-classify SCs.

Don't confuse with

  • Inclusion in or exclusion from the SC list (Art. 341(2)): only Parliament can change the list. Sub-classification by a state only shares the quota within the existing list.
  • Creamy layer: this removes better-off individuals or families from the benefit. Sub-classification groups whole castes. For SCs, the creamy layer in Davinder Singh is only obiter. It binds only for OBCs (Indra Sawhney, 1992) and for SC/ST promotions (Jarnail Singh, 2018).
  • Rohini Commission: it deals with sub-categorising central OBCs, not SCs.
  • Reservation in promotion (Art. 16(4A), 77th Amendment 1995): this concerns SC/ST quotas when serving employees are promoted. It is a separate issue, tested through M. Nagaraj (2006) and Jarnail Singh (2018).

Prelims Hooks

  • E.V. Chinnaiah (2004, 5 judges) held that SCs are a homogeneous class. Davinder Singh (2024, 7 judges, 6:1) overruled it. The only dissent was by Justice Bela M. Trivedi.
  • Davinder Singh traces the power to sub-classify to Arts. 15(4) and 16(4). It does not come from Art. 341, which only the President (notification) and Parliament (law) use.
  • Trap: a state cannot give 100% of the SC quota to one sub-group. Sub-classification needs empirical data, not political convenience.
  • The creamy layer for SCs in Davinder Singh is obiter. The Union government holds that Art. 341 has no creamy-layer provision [2].
  • Andhra Pradesh shares its 15% SC quota as 1 + 6.5 + 7.5 across 3 groups [3]. Karnataka shares its 17% SC quota as 6 + 6 + 5 across Categories A, B and C [4].
  • The Punjab law at the root of the case was the 2006 Act, which gave 50% first preference to Balmikis and Mazhabi Sikhs.

Mains Points

  • Fairness within the group vs unity:
  • Sub-classification stops a few advanced SC castes from taking most of the benefits. This makes the quota fairer inside the group.
  • Risks: groups may be carved for votes, and Dalit political unity may split.

  • Davinder Singh's need for empirical data, and its judicial review, are the safeguards.

  • Data gap and federal questions:

  • There is no caste-wise census of SC sub-castes, so states depend on one-off commissions, such as the H.N. Nagamohan Das report in Karnataka.
  • Justice Trivedi's dissent warns that states may indirectly change Parliament's Art. 341 list.

  • Possible reform: a statutory commission to collect SC sub-caste data before any state acts.

  • Creamy layer for SCs/STs:

  • For: benefits reach the truly deprived, in line with the OBC rule.
  • Against: the stigma of untouchability stays even after a family's income rises. The Union government also says Art. 341 has no such provision [2].
  • Sub-classification by caste group is the less controversial route to the same goal.

Related concepts

Read more

Sources

  1. 1PIB — "Sub-Categorisation of SCs List"pib.gov.in · tier 1
  2. 2PIB — "Introduction of the 'Creamy Layer' Concept in the Scheduled Caste category"pib.gov.in · tier 1
  3. 3PRS Legislative Research — Andhra Pradesh Scheduled Castes (Sub-classification) Bill, 2025 (L.A. Bill No. 16 of 2025)prsindia.org · tier 1
  4. 4PRS Legislative Research — Karnataka Scheduled Castes (Sub-Classification) Bill, 2025 (LA Bill No. 89 of 2025)prsindia.org · tier 1