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Deep Dive · Caste & Inequality

The Caste Lists

India last counted every caste in 1931 and has governed through lists ever since. A reading list on how those lists were made, what the courts allow them to do, and what changes when a state counts again.

India Data & law 12 readings
IM
ImpactMojo Editorial
Curated by the ImpactMojo team
Built alongside the Caste Lists Explorer and the Linking Caste Lists exercise in Code Studio, which both work from Shivakumar Jolad and Gaurav Kalyani's Database of castes. Our earlier Deep Dive, Caste, Identity, and Development, reads caste as a social and economic structure. This one reads the lists themselves as documents, which is how most practitioners meet caste at work: as a box on a form, a schedule in an order or a code in a survey. We would welcome an invited curator, especially a Dalit, Bahujan or Adivasi scholar working on enumeration or law.
House Pick
Editor's note

Three numbers frame this list. The 1931 Census counted 50,195,770 people in the “exterior castes”, the category that became the Scheduled Castes, and it was the last census to count every caste. In 1980 the Mandal Commission, with nothing more recent to use, worked from 1931 to estimate the backward classes at 52 per cent of India. And in October 2023 Bihar published the first full caste count of a state, which put the Extremely Backward and Other Backward Classes together at 63 per cent of its population.

Between 1931 and 2023 India governed caste through lists rather than counts. The Constitution (Scheduled Castes) Order, 1950 names the Scheduled Castes state by state, and since 1951 the census has counted only the communities on such lists. The Central List of Other Backward Classes, built after the Supreme Court upheld reservation for backward classes in 1992, now runs to 2,459 entries across 29 states and union territories. A list says who is eligible. It cannot say how many people that is, and the backward-class share the list serves was last measured nine decades ago.

Building the Caste Lists Explorer taught us three things about the lists themselves. They are written as prose: one entry can carry seven names, and a bracket may hold an alias, a religion or a district. Their dates need checking: in the most complete published database, the year given for 654 of 2,428 active OBC entries is the year in the file number, earlier than the resolution itself. And linking one list to another is a judgement: in Bihar, 114 of the Mandal Commission's 168 entries share an exact name with today's Central List, and every other match depends on a person deciding that two spellings are one community.

How to read this list. Four sections, in order. How caste came to be counted, with the two histories that disagree about what the colonial census did. The lists in law: the Scheduled Castes Order, the Mandal report and the two Supreme Court judgments that most shape what a list may do. Counting again, from the 2010 argument to Bihar's survey and the data now available to anyone. And practice, for readers who want to work with the lists. The Union Cabinet decided on 30 April 2025 that the next census will count caste, with no date announced, so the questions here are about to be asked again at national scale.

On the citations. Every figure is attributed to its source. Where a stable public URL could be verified it is linked; some government and publisher sites refuse automated requests, and statutes, reports and judgments are cited by their formal titles so that they can be found wherever they move. This list reads the lists as documents; for caste as a social and economic structure, start with Caste, Identity, and Development.

Section 01

How caste came to be counted

The colonial census turned caste into a set of named, counted groups. These readings explain what that did, and why historians still disagree about how much of modern caste it made.

The source behind almost every caste figure still in use. Hutton's chapter on caste and his appendix on the “exterior castes” set out who was counted and why, and Table B gives the count: 50,195,770 people in the exterior castes in 1931, the category that became the Scheduled Castes. Read the definitions before the numbers. Who counted as “exterior” was settled province by province, so an all-India share adds together lines that were drawn in different places by different tests.

The strongest version of the argument that colonial rule made caste into the single category through which India was governed. Dirks does not claim the British invented caste. His claim is that the census and the ethnographic survey fixed identities that had been negotiable and gave them administrative consequences. Read the chapters on the census and on the “ethnographic state”, then read Bayly for the case that he overstates it.

The necessary counterweight to Dirks. Bayly traces how caste hardened between the eighteenth and twentieth centuries through kingship, trade, religious reform and colonial rule together, and argues that Indians were active in shaping the categories the census recorded. For a practitioner the useful lesson is that a caste name on a list is the outcome of a long contest, which is why the same community can appear under different names in different states.

Section 02

The lists in law

After 1950 caste was governed by schedules and lists rather than by counts. These are the instruments, and the two judgments that most limit and enlarge what the lists may do.

The list that decides who is a Scheduled Caste, state by state. Read paragraph 3 before anything else: as amended in 1956 and 1990, it provides that no person who professes a religion other than Hinduism, Sikhism or Buddhism is deemed a member of a Scheduled Caste. That one paragraph is why the same community name, Dhobi or Nat in Bihar, appears on the Scheduled Caste list and again, marked “(Muslim)”, on the list of backward classes.

The report that put the backward classes into national policy. It listed about 3,700 communities state by state and, working from the 1931 Census because nothing later existed, estimated the backward classes at 52 per cent of the population. Read the chapter on the eleven indicators used to identify backwardness alongside the state lists in Part II: the method and the lists do not always agree, and the gap is where most later litigation began.

The judgment that upheld 27 per cent reservation for backward classes in central government posts, held that caste can be a criterion of backwardness, set the 50 per cent ceiling on reservation, and required the “creamy layer” to be excluded. It also directed the creation of a permanent body to revise the lists, which became the National Commission for Backward Classes. Every Central List entry since rests on this case.

By six to one, the Court held that states may sub-classify the Scheduled Castes and reserve a share of the quota for the castes within them that have benefited least, overruling E. V. Chinnaiah (2004). The decision turns the list from a single category into something a state may divide, which makes the quality of caste-level data a constitutional question: sub-classification has to be justified by evidence of relative backwardness, and in most states that evidence has not been collected.

Section 03

Counting again

The argument over whether to count caste returned in 2010 and was settled, for now, in 2025. These readings cover the case for counting and the first state to do it.

The clearest statement of the case for a caste census, written during the argument over the 2011 Census. The authors' central point is that not counting caste is as much a political decision as counting it, and that a census which records only the disadvantaged castes leaves the advantaged ones unmeasured and so invisible. The reprint collects the main positions on both sides, which makes it a useful single source for the debate.

The first full caste count published by a state. It put Extremely Backward Classes at 36.01 per cent of Bihar, Other Backward Classes at 27.12 per cent, Scheduled Castes at 19.65 per cent, Scheduled Tribes at 1.68 per cent and the unreserved castes at 15.52 per cent. Read the published tables, not the political response to them: the survey's caste codes are themselves a list, drawn up before enumeration, and how a household chose among them is the question the figures cannot answer.

The first machine-readable set of the lists in one place: the 1931 caste and religion tables, the exterior castes, the Central List of OBCs with the Mandal lists and the state Scheduled Tribe lists, with identifiers linking them. Use it, and use it carefully. In V1.1 the year given for 654 of 2,428 active OBC entries comes from the gazette file number, one to five years before the resolution's printed date, and two rows of the 1931 exterior table do not add to their printed subtotals; both have been reported to the authors. The Union Cabinet decided on 30 April 2025 that the next census will enumerate caste, so data like this is about to have a successor.

Section 04

Practice

For readers who want to work with the lists rather than read about them.

The 1931 exterior castes, the Scheduled Caste lists linked back to 1931, the Central List of OBCs by the date of each resolution, and the Mandal lists against today's Central List, charted from the Jolad and Kalyani data. Each section says what its matches can and cannot show, because every link in it is a match of spellings.

Match the Mandal Commission's Bihar list to today's Central List yourself, in Python in the browser. In Bihar, 114 of the 168 Mandal entries share an exact name with the Central List; the exercise is about the rest, where a similarity score ranks candidates such as Churihara and Churihar or Kawar and Kalwar and a person has to decide, with a source, whether they are one community.