Scheduled Castes (SCs) and Scheduled Tribes (STs) are communities specifically listed in the Constitution of India that receive special protections, reservations, and developmental provisions to address historical social exclusion and geographical isolation. The Constitution provides a comprehensive framework through Articles 15, 16, 17, 46, 244, 330, 332, 335, 338, 338A, 341, and 342 — along with the Fifth and Sixth Schedules — making this one of the most extensive protection systems for marginalised communities worldwide.
Who Are SCs and STs?
Scheduled Castes (Article 341)
The President, after consultation with the Governor of a state, specifies by public notification the castes, races, or tribes (or parts thereof) to be deemed Scheduled Castes for that state/UT. Parliament can modify this list by law.
There are currently 1,283 communities across India in the SC list. The total SC population is approximately 20.14 crore (16.6% of India's population, 2011 Census).
The historical basis for SC identification was the practice of "untouchability" — social exclusion based on caste hierarchy. The Constitution doesn't define "Scheduled Caste" but relies on the President's notification.
Scheduled Tribes (Article 342)
Similar to SCs, the President specifies which tribes or tribal communities shall be deemed Scheduled Tribes. The criteria (not explicitly constitutional but administratively followed since the Lokur Committee, 1965) include:
- Primitive traits
- Distinctive culture
- Geographical isolation
- Shyness of contact with the community at large
- Backwardness
There are currently 744 ST communities. The total ST population is approximately 10.43 crore (8.6% of India's population, 2011 Census). The largest tribal populations are in Madhya Pradesh, Maharashtra, Odisha, Rajasthan, Gujarat, Jharkhand, and Chhattisgarh.
Constitutional Framework
Protective Provisions
| Article | Provision |
|---|---|
| Article 15(4) | State can make special provisions for advancement of SCs and STs |
| Article 16(4) | Reservation in public employment for inadequately represented backward classes |
| Article 16(4A) | Reservation in promotions for SCs and STs |
| Article 17 | Abolition of untouchability — its practice in any form is an offence |
| Article 23 | Prohibition of traffic in human beings and forced labour |
| Article 29 | Protection of cultural and educational interests of minorities |
| Article 46 | DPSP: State to promote educational and economic interests of SCs, STs, and weaker sections |
Political Representation
| Article | Provision |
|---|---|
| Article 330 | Reservation of seats for SCs and STs in Lok Sabha |
| Article 332 | Reservation of seats for SCs and STs in state legislative assemblies |
| Article 334 | Reservation to cease after 80 years from Constitution's commencement (extended to 2030 by 104th Amendment) |
| Article 243D | Reservation for SCs and STs in Panchayats |
| Article 243T | Reservation for SCs and STs in Municipalities |
Administrative Provisions
Article 335: Claims of SCs and STs shall be taken into consideration, consistently with maintenance of efficiency, in making appointments to services and posts. The proviso (added by 82nd Amendment, 2000) allows relaxation of qualifying marks in examinations for SC/ST candidates.
Article 338: National Commission for Scheduled Castes Article 338A: National Commission for Scheduled Tribes
National Commission for Scheduled Castes (NCSC)
The NCSC is a constitutional body under Article 338. Originally, there was a single National Commission for Scheduled Castes and Scheduled Tribes. The 89th Amendment (2003) bifurcated it into two separate commissions.
Composition
- Chairperson
- Vice-Chairperson
- Three other members
- All appointed by the President
Functions
- Investigate and monitor all matters relating to safeguards for SCs
- Inquire into specific complaints regarding deprivation of rights
- Participate in and advise on planning of socio-economic development
- Present annual reports to the President (tabled in Parliament)
- Make recommendations for effective implementation of safeguards
- Discharge similar functions for Other Backward Classes (OBCs) and Anglo-Indians
Powers
The NCSC has powers of a civil court for summoning witnesses, requiring document production, receiving evidence, and issuing commissions.
National Commission for Scheduled Tribes (NCST)
Created by the 89th Amendment (2003) under Article 338A, the NCST has the same structure and powers as the NCSC but focuses exclusively on Scheduled Tribes.
Comparison: NCSC vs NCST
| Feature | NCSC | NCST |
|---|---|---|
| Constitutional Basis | Article 338 | Article 338A |
| Created By | 65th Amendment (1990), separated by 89th Amendment (2003) | 89th Amendment (2003) |
| Focus | Scheduled Castes + OBCs + Anglo-Indians | Scheduled Tribes only |
| Additional Mandate | Monitors OBC safeguards | Monitors PESA implementation |
| Chairperson | SC community member | ST community member |
Reservation Framework
Current Reservation Structure
| Category | Central Government Reservation | Constitutional Basis |
|---|---|---|
| Scheduled Castes | 15% | Articles 15(4), 16(4) |
| Scheduled Tribes | 7.5% | Articles 15(4), 16(4) |
| Other Backward Classes | 27% | Articles 15(4), 16(4); Indra Sawhney judgment |
| Economically Weaker Sections | 10% | Article 15(6), 16(6); 103rd Amendment (2019) |
| Total | 59.5% |
Key Supreme Court Judgments on Reservation
Indra Sawhney v. Union of India (1992): The landmark Mandal Commission case. The nine-judge bench upheld 27% OBC reservation, established the 50% ceiling on total reservations, introduced the “creamy layer” concept for OBCs (but not for SCs/STs), and held that reservation in promotions wasn’t a fundamental right.
M. Nagaraj v. Union of India (2006): Upheld reservation in promotions for SCs/STs but imposed three conditions — the state must demonstrate: (a) backwardness of the community, (b) inadequacy of representation, and (c) overall administrative efficiency won't suffer.
Jarnail Singh v. Lachhmi Narain Gupta (2018): Modified Nagaraj — held that the state doesn't need to collect quantifiable data on backwardness of SCs/STs (their backwardness is established by their inclusion in the presidential list). Upheld the application of creamy layer to SC/ST promotions.
EWS Reservation Case — Janhit Abhiyan v. Union of India (2022): Upheld the 103rd Amendment providing 10% EWS reservation, but exclusion of SCs, STs, and OBCs from the EWS category was validated by a 3:2 majority.
Fifth and Sixth Schedules
Fifth Schedule: Scheduled Areas
Provides for the administration of Scheduled Areas (tribal-majority areas) in 10 states. Key features:
- Governor has special powers to modify laws for these areas
- Tribes Advisory Council advises the Governor
- The PESA Act (1996) extends Panchayati Raj to these areas with tribal-friendly modifications
Sixth Schedule: Tribal Areas
Provides autonomous governance for tribal areas in four northeastern states (Assam, Meghalaya, Tripura, Mizoram) through Autonomous District Councils with legislative, judicial, and executive powers.
Related: Schedules of Indian Constitution
Key Legislations for SC/ST Protection
| Legislation | Year | Key Provision |
|---|---|---|
| Protection of Civil Rights Act | 1955 | Punishes untouchability practices |
| SC/ST (Prevention of Atrocities) Act | 1989 | Criminalises atrocities against SCs/STs; special courts |
| SC/ST (Prevention of Atrocities) Amendment Act | 2015 | Added new offences; strengthened provisions |
| PESA Act | 1996 | Extends Panchayati Raj to Fifth Schedule areas |
| Forest Rights Act | 2006 | Recognises forest-dwelling tribal communities' rights over forest land |
| Right to Fair Compensation Act | 2013 | Protects tribal land from arbitrary acquisition |
SC/ST (Prevention of Atrocities) Act, 1989
This is the primary criminal legislation protecting SCs and STs from caste-based violence and discrimination. Key features:
- Defines specific offences (forced consumption of noxious substances, social boycott, sexual exploitation, land dispossession)
- Provides for exclusive special courts for speedy trial
- Anticipatory bail not available for accused (upheld by SC, restored after Subhash Kashinath Mahajan case controversy)
- Compensation and rehabilitation for victims
- Establishment of state-level vigilance and monitoring committees
Challenges and Way Forward
Atrocity Persistence: Despite legal protections, crimes against SCs and STs remain significant. The NCRB reports thousands of cases annually under the Atrocities Act.
Reservation Debates: Questions around creamy layer for SCs/STs, sub-categorisation within SC/ST lists (State of Punjab v. Davinder Singh, referred to a larger bench), and the 50% ceiling continue to generate legal and political debates.
Implementation Gaps: The Forest Rights Act and PESA face poor implementation. Many tribal communities still lack formal recognition of land and forest rights.
Urbanisation and Identity: As SC/ST populations urbanise, new forms of discrimination emerge in housing, employment, and social interactions that traditional protection mechanisms may not address adequately.
Related: Fundamental Rights Related: Special Provisions for States Related: Panchayati Raj System
Frequently Asked Questions
What is the difference between Scheduled Castes and Scheduled Tribes?
Scheduled Castes are communities historically subjected to untouchability and social discrimination based on caste hierarchy — they're identified under Article 341. Scheduled Tribes are communities characterised by geographical isolation, distinctive culture, primitive traits, and shyness of contact — identified under Article 342. SCs are largely found across India; STs are concentrated in forested, hilly, or remote areas.
Who has the power to include or exclude communities from the SC/ST list?
The President initially notifies the SC/ST list for each state after consultation with the Governor. However, once notified, only Parliament can modify the list — add, exclude, or re-specify communities. Neither the President nor any state government can unilaterally alter the list after initial notification. This was clarified in the case of E.V. Chinnaiah v. State of Andhra Pradesh (2005).
What is the 50% ceiling on reservations?
The Supreme Court in Indra Sawhney v. Union of India (1992) held that total reservations shouldn't exceed 50% to maintain equality under Article 14. However, the 103rd Amendment (2019) added 10% EWS reservation over and above this ceiling, bringing total reservations to approximately 59.5%. Tamil Nadu provides 69% reservation under the Ninth Schedule. The Court allowed breach only in "extraordinary circumstances."
What is the creamy layer concept for SC/ST?
Originally, the creamy layer (excluding affluent members from reservation benefits) applied only to OBCs, not SCs/STs. However, in Jarnail Singh v. Lachhmi Narain Gupta (2018), the Supreme Court held that the creamy layer concept should be applied to SCs and STs in the matter of reservation in promotions. This remains a contentious issue, with many arguing it undermines the purpose of SC/ST reservation.
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