Caste & Reservation in India — Mandal to EWS to Sub-Categorisation

Why this matters now

The 103rd Amendment 2019 (EWS reservation) and the 2024 Davinder Singh ruling on SC sub-classification have collectively rewritten India's reservation architecture for the first time since 1992. Total reservation in central government employment is now around 60% (15% SC + 7.5% ST + 27% OBC + 10% EWS) — exceeding the historical 50% cap. Sub-categorisation within OBC and SC is the next frontier. Every contemporary debate about Indian inequality, electoral politics, and judicial reasoning runs through this architecture.

The constitutional framework

Reservation rests on a sophisticated constitutional framework that synthesises formal and substantive equality:

The framework permits substantive equality (special provisions for the disadvantaged) within an overall commitment to formal equality (no caste discrimination). Reservation is therefore not an exception to equality — it is one of its operationalisations.

SC/ST reservation — the original architecture

From 1950, the Constitution provided:

• 15% reservation for Scheduled Castes in employment and education;
• 7.5% reservation for Scheduled Tribes in employment and education;
• Political reservation in Lok Sabha (84 SC + 47 ST seats) and State Legislative Assemblies — initially for 10 years (Article 334), extended every 10 years; now extended to 80 years from Constitution start by 104th Amendment 2020.

The basis: Articles 341/342 — the President, in consultation with the Governor, specifies the castes/tribes considered SC/ST for each state. The list is dynamic — castes are added or removed by Parliament; classification can be challenged in court.

SC/ST reservation enjoyed broad consensus and was not challenged on creamy-layer or 50%-cap grounds until decades later. The shift came with Mandal.

OBC reservation and the Mandal Commission

The Constitution mentioned 'socially and educationally backward classes' (SEBCs) in Article 15(4) but did not list them. The First Backward Classes Commission (Kalelkar, 1953) submitted a report but it was shelved. The Second Backward Classes Commission — the Mandal Commission — was set up in 1979 under chairman B.P. Mandal.

Implementation began under the P.V. Narasimha Rao government (1991-96). Today, 27% of central government jobs and central educational institutions are reserved for OBCs. State-level OBC reservations vary — many states have OBC quotas, including breaking the 50% cap (Tamil Nadu 69%, Karnataka, Maharashtra).

Indra Sawhney v. Union of India (1992)

This is the most consequential Supreme Court judgment on reservation. Decided by a 9-judge bench (the largest then assembled on a reservation question), Justice B.P. Jeevan Reddy delivered the lead opinion. Key holdings:

1. 27% OBC reservation upheld — Article 16(4) covers OBCs; Article 15(4) covers education; reservation is permissible for socially and educationally backward classes (not purely economic backwardness).
2. Backwardness must be SOCIAL — economic criteria alone is NOT a valid basis for reservation under Article 16(4). (This holding was later modified by the 103rd Amendment, but the broader logic persists in OBC identification.)
3. CREAMY LAYER must be excluded — well-off OBCs cannot get reservation benefits, since they no longer face the social/educational disadvantage that reservation addresses.
4. 50% CAP — total reservation in any year (in any single section or service) shall not exceed 50%, except in extraordinary circumstances.
5. Carry-forward rule — unfilled SC/ST vacancies can be carried forward, but the 50% cap applies even in carry-forward years.
6. No reservation in promotion — Article 16(4) does not cover promotions. (Subsequently reversed by 77th Amendment 1995, 81st Amendment 2000, 85th Amendment 2001.)
7. Article 16(1) general equality still applies — reservation must be 'reasonable' even within the framework.

The 50% cap was the most contested holding. The court said it was a 'reasonable' limit but allowed exceptions in 'exceptional and extraordinary circumstances'. Several states (notably Tamil Nadu at 69%, Karnataka, Maharashtra) have crossed this cap citing local conditions; the Supreme Court has reviewed but generally allowed.

The creamy layer doctrine

The creamy layer was Indra Sawhney's most innovative contribution. The doctrine: reservation should benefit those who actually face disadvantage — not those who have already accessed education and economic mobility within their community.

For OBCs, the creamy layer criteria (last revised 2017) are:

• Income criterion: family income above ₹8 lakh per annum;
• Status criterion: children of Group A/B central government officers; children of constitutional post holders; children of professionals (doctors, lawyers, engineers) earning above ₹8 lakh; children of armed forces officers above colonel rank;
• Land criterion: ownership of significant agricultural land or large urban property.

For SC/ST, the Supreme Court historically did NOT apply creamy layer — recognising that SC/ST face caste-based disadvantage that does not disappear with economic mobility. However:

• Jarnail Singh (2018) — Supreme Court applied creamy layer to SC/ST in PROMOTIONS;
• Davinder Singh (2024) — 7-judge bench (6-1 majority) ruled that creamy layer principles can be applied to SC/ST contextually; sub-classification within SC is permissible. Justice B.R. Gavai's concurring opinion strongly endorsed creamy layer for SC/ST. Controversial.

The creamy layer is the moral architecture of the reservation system — it makes reservation 'genuine affirmative action' rather than perpetuating elite capture.

The EWS reservation — 103rd Amendment 2019

The Constitution (One Hundred and Third Amendment) Act 2019 added 10% reservation for Economically Weaker Sections (EWS) of the general (non-SC/ST/OBC) population. It inserted:

• Article 15(6) — EWS reservation in educational institutions (public and private, excluding minority institutions);
• Article 16(6) — EWS reservation in public employment.

Eligibility (EWS Notification 2019):

• Family income below ₹8 lakh per annum;
• Does not own 5 acres or more of agricultural land;
• Does not own a residential flat of 1,000 sq ft or more in metros;
• Does not own a residential plot of 100 sq yards or more in notified municipalities (200 sq yards elsewhere);
• Does NOT belong to SC, ST, or OBC categories.

The 10% EWS reservation is in ADDITION to the existing SC (15%) + ST (7.5%) + OBC (27%) reservation — bringing total central reservation to 59.5%, exceeding the Indra Sawhney 50% cap.

Janhit Abhiyan v. Union of India (2022)

The 103rd Amendment was challenged in the Supreme Court. Janhit Abhiyan v. Union of India (2022), decided by a 5-judge Constitution Bench, upheld the Amendment by a 3-2 majority.

Majority (Justices Maheshwari, Bela Trivedi, J.B. Pardiwala):

• Economic criteria alone is a valid basis for affirmative action;
• The 50% cap from Indra Sawhney was a 'reasonable' limit but not a constitutional mandate; breaching it for EWS is permissible;
• Excluding SC/ST/OBC from EWS does not violate equality — they already have their own reservation;
• Affirmative action for economic disadvantage is consistent with substantive equality.

Dissent (CJI U.U. Lalit, Justice S. Ravindra Bhat):

• Economic criteria alone is NOT a valid basis — Indra Sawhney was correctly decided;
• The 50% cap is rigid and breaching it for EWS undermines the doctrine;
• Excluding SC/ST/OBC from EWS is discriminatory — many EWS-eligible individuals exist within those groups too.

The majority view prevailed; the 103rd Amendment is operative. Critics argue the judgment fundamentally altered the framework that had stood since 1992.

OBC sub-categorisation — the Rohini Commission

A persistent criticism of the Mandal-style OBC quota is that benefits concentrate among a small number of dominant OBC castes (Yadavs, Kurmis, Lodhs, Jats, Marathas in some contexts), while smaller and more disadvantaged OBC castes — often called Extremely Backward Classes (EBCs) — receive disproportionately little.

The Justice Rohini Commission was constituted in October 2017 under retired Delhi HC Chief Justice G. Rohini to examine OBC sub-categorisation. Mandate:

1. Examine the extent of inequitable distribution of benefits among OBC castes;
2. Work out a mechanism for sub-categorisation;
3. Take up the task of identification and classification.

The Commission's findings (final reports submitted 2023):

• ~25% of the 27% OBC quota went to about 10 dominant castes;
• Around 1,000 OBC castes (out of ~2,633 in the central list) received almost no benefits;
• ~983 OBC castes have zero representation in central jobs.

Recommendations: divide the 27% OBC reservation into 4 sub-groups based on actual access — most dominant castes get ~10%; medium-access get ~9%; low-access get ~6%; extremely low-access get ~2%. Implementation has not yet happened.

Parallel state-level developments: many states have already done OBC sub-categorisation — Tamil Nadu, Bihar, AP, Telangana, Karnataka, Maharashtra all have MBC/EBC sub-categories.

SC sub-classification — the Davinder Singh 2024 ruling

The most significant recent ruling. State of Punjab v. Davinder Singh (2024), a 7-judge bench by 6-1 majority, allowed sub-classification within Scheduled Castes for reservation purposes.

The case arose from Punjab's 1975 notification giving preference to Mazhabi Sikhs and Valmikis within the SC quota. The earlier E.V. Chinnaiah (2004) judgment had held that SCs constitute a homogeneous class and cannot be sub-classified. Davinder Singh overruled Chinnaiah.

Key holdings:

1. Sub-classification permitted — SCs are not a homogeneous class; sub-classification by states is permissible if backed by empirical data showing within-SC inequality.
2. Conditions — sub-classification must be based on rational quantifiable data, not arbitrary; must show that benefits have not reached certain sub-groups;
3. Cannot reserve 100% for one sub-group — the SC quota must remain accessible to the broader SC category;
4. Creamy layer applicable to SCs — Justice B.R. Gavai's concurring opinion (joined by some others) extended creamy layer principles to SCs. This is the controversial holding;
5. State competence — states have legislative competence to sub-classify under Articles 15(4) and 16(4).

Impact: states can now create sub-quotas within the SC quota — for example, dividing 15% SC reservation across more and less disadvantaged SC castes. Implementation requires state legislation and data. The creamy layer extension to SCs has been politically contentious.

Political economy — why caste politics is durable

Five structural reasons caste politics remains central:

1. Electoral arithmetic — caste-based vote banks are the backbone of Indian politics. Yadav-Muslim (UP), Maratha (Maharashtra), Vokkaliga-Lingayat (Karnataka), Kamma-Reddy (AP), Dalit (across).
2. Reservation politics — every expansion (OBC, EWS, sub-categorisation) creates political winners and losers, generating recurring electoral controversies.
3. Marriage and identity — caste endogamy remains overwhelming; matrimonial advertising explicitly caste-coded.
4. Economic inequality — caste correlates with wealth, education, occupation more strongly than most observers acknowledge.
5. Social capital — caste-based networks (panchayats, gotras, associations) remain functional in business, politics, and social mobility.

The reservation framework is therefore not just a policy instrument — it is a constitutional intervention in a deeply embedded social system that operates parallel to formal equality. Its evolution reflects 75 years of political contestation, judicial reasoning, and societal change.

"Reservation is not a poverty alleviation programme. It is a programme of representation — to give a stake in the state to those who have been historically excluded from it." — frequently invoked summary of the Indian doctrinal position

UPSC PYQs and likely future questions

• 2016 GS-2: "What are the regulations involved in awarding reservation? Discuss the constitutional jurisprudence around the 50% cap."
• 2018 GS-1: "'Indian society is essentially a caste society.' Discuss in the light of social mobility through reservation."
• 2020 GS-2: "Examine the constitutional implications of the 103rd Constitutional Amendment (EWS reservation)."
• 2022 GS-2: "Discuss the Justice Rohini Commission's recommendation for sub-categorisation of OBC reservation. What are the political consequences?"
• 2024 GS-2: "Examine the 2024 Supreme Court ruling in State of Punjab v. Davinder Singh permitting sub-classification within Scheduled Castes. What are its implications for Indian federalism and reservation doctrine?"
• Likely 2026 question: "Should the creamy layer principle be applied to Scheduled Castes? Discuss the constitutional and policy arguments on both sides."
• Likely 2026 question: "Trace the journey of OBC reservation from Mandal Commission (1980) to the Rohini Commission (2023). What does it reveal about Indian constitutional democracy?"

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