Defining Caste: Social Stratification in India

Few social institutions in human history have been as enduring, as complex, or as consequential as caste. In India, caste has shaped marriage, occupation, social interaction, and political life for centuries – and it continues to influence daily realities for hundreds of millions of people today. Yet, despite its pervasive presence, defining caste precisely remains one of sociology’s more challenging tasks. As the eminent sociologist G. S. Ghurye observed in 1932, any attempt at a single general definition is complicated by the sheer complexity of the phenomenon. So, where does the word come from? What do scholars actually mean when they use it? And what are the key features that set caste apart from other forms of social hierarchy?

The word “caste”: tracing its roots 🔗

The term “caste” is not Indian in origin. It came into English through Portuguese – and the Portuguese term itself has Latin ancestry. The Latin word castus meant “cut off” or “separated,” carrying associated meanings of purity and chastity. From this root, the Portuguese developed the word casta, meaning “race, lineage, or breed.” Portuguese observers used casta, in the sense of purity of breed, to describe the division of Hindu society in western and southwestern India into socially ranked occupational categories – groups that practiced mutual exclusion in matters of eating and marriage.

The Portuguese were the first Europeans to reach India by sea in 1498, and they applied casta to the thousands of endogamous, hereditary Indian social groups they encountered. The English spelling “caste” with this specific meaning is first recorded in 1613. Over time, it spread into major European languages including Dutch and French, always with reference to the unique social stratification found in South Asia.

It is worth noting that India had its own indigenous vocabulary for these social divisions long before any European coinage was applied. The Sanskrit term varna, meaning “color,” and jati, meaning “birth group,” were the traditional frameworks used to describe social categories in Hindu texts and religious practice. The European label “caste” essentially became an umbrella term that was layered over these preexisting concepts – and the mapping has never been perfectly clean.

Varna and jati: the Indian framework 🔗

Britannica draws a useful distinction between the two primary Indian concepts often grouped under the word “caste.” Varna refers to the four broad classical divisions of Hindu society: the Brahmins (priests and scholars), the Kshatriyas (warriors and rulers), the Vaishyas (merchants and farmers), and the Shudras (laborers and service providers). Below these four varnas were those considered outside the system entirely – historically known as “untouchables,” now more commonly referred to as Dalits.

Jati, by contrast, is a far more granular concept. It refers to the thousands of specific hereditary groups – each associated with a particular region, occupation, and set of social rules – that make up the actual lived reality of the caste system. Indian society comprises several thousand such endogamous groups or castes, simultaneously separated and connected to each other, each with a hereditarily determined mode of subsistence and a restricted geographical range. Most sociologists, when they write about “the caste system,” have jati rather than varna in mind – because jati is the unit that actually governs everyday social interaction, marriage, occupation, and community identity at the local level.

How sociologists define caste 🔗

Given the complexity of the institution, it is no surprise that different scholars have approached its definition from different angles. Several key definitions have shaped the academic understanding of caste.

Herbert Risley: descent, name, and hereditary occupation 🔗

One of the earliest formal definitions came from British ethnographer Sir Herbert Risley, who conducted extensive surveys of Indian society during the colonial era. Risley defined caste as a collection of families bearing a common name, claiming common descent from an ancestor (human or divine), following the same hereditary calling, and regarded by those competent to judge as forming a single homogeneous community. His definition emphasizes the role of genealogy and shared ancestry in holding a caste group together – and it treats caste as fundamentally a closed, birth-determined social unit.

G. S. Ghurye: six defining characteristics 🔗

G. S. Ghurye, widely regarded as the father of Indian sociology, offered a more systematic account of caste in his work Caste, Class and Occupation. Rather than offering a single-sentence definition, Ghurye outlined six defining characteristics: segmentation of society into birth-determined groups, hierarchical ranking of those groups, restrictions on feeding and social contact between groups, lack of unrestricted choice of occupation, restrictions on marriage (endogamy), and differential degrees of civil and religious privilege. Together, these features constitute what Ghurye saw as the core architecture of the caste system – a social order where one’s birth determines one’s place across almost every dimension of life.

Louis Dumont: hierarchy, purity, and pollution 🔗

French sociologist Louis Dumont shifted the analytical lens considerably. In his influential work Homo Hierarchicus, Dumont argued that caste could not be reduced to social stratification in the usual sense. Rather, he saw it as an entire worldview structured around the opposition between purity and pollution. In Dumont’s analysis, the twin concepts of purity and pollution are key to the caste system – they are not merely symbolic but structure the entire logic of ranking and social separation. Brahmins occupy the top of the hierarchy because of their ritual purity; others are ranked according to their relative proximity to or distance from that ideal. Dumont’s approach has been criticized for overemphasizing ideology at the expense of material and political factors, but it remains foundational in caste studies.

A composite sociological definition 🔗

Drawing across these perspectives, a working sociological definition would describe caste as: ranked, hereditary, and endogamous social groups, often linked with occupation, that together constitute traditional societies in South Asia – particularly among Hindus in India. This system involves closed, hereditarily determined groups, maintaining endogamous practices and enforcing restrictions on inter-caste interactions, with theoretical mobility considered impossible.

Core features of caste as a social institution 🔗

While definitions vary across scholars, there is broad consensus on the key features that together constitute caste as a distinct form of social stratification.

Hereditary membership 🔗

Caste is assigned by birth, not achievement. Membership in a caste is determined by birth and remains fixed throughout one’s life – a hereditary nature that ensures caste identities are preserved across generations, making social mobility within the system extremely rare. This is what distinguishes caste from class: you can, theoretically, change your economic class, but in the traditional caste framework, you cannot change the caste you were born into.

Endogamy 🔗

Endogamy – the requirement to marry within one’s own caste – is widely regarded as the defining practice that sustains caste boundaries over time. Marriage within one’s caste is a fundamental rule; any deviation from this practice often leads to severe social sanctions. Endogamy is not just a social custom – it functions as the biological and cultural mechanism through which caste groups maintain their distinctness across generations. A 2016 study based on DNA analysis of unrelated Indians confirmed that endogamous jatis originated during the Gupta Empire, suggesting this practice has roots stretching back well over a thousand years.

Hierarchy and social rank 🔗

Everywhere, castes were ranked vertically, with Brahmins at the top by virtue of their inherent condition of ritual purity, and Shudras at the bottom. This ranking is not merely a matter of social prestige – it historically determined one’s access to temples, water sources, public spaces, and legal protections. The Indian caste system is a classification of people into four hierarchically ranked groups, determining access to wealth, power, and privilege, with leadership positions in society traditionally monopolized by a few dominant castes.

Hereditary occupation 🔗

Each caste was traditionally associated with a specific occupation, and members were expected to follow it. Brahmins, who occupied the uppermost rank, were prescribed the duties of acquiring and teaching sacred knowledge and performing sacrifices, while lower castes such as Dalits were historically restricted to manual labor. This occupational fixing was not merely a matter of custom – it was enforced through social norms, religious sanction, and, in many cases, law. Over time, this became one of the most socially damaging features of the system, locking entire communities into specific roles regardless of individual ability or aspiration.

Social restrictions and civil disabilities 🔗

Beyond marriage and occupation, caste governed a wide range of everyday interactions. Caste refers to socially distinct endogamous groups separated and connected through three basic characteristics: separation regarding marriage and contact, division of labor with each group representing a particular profession, and hierarchy that ranks groups into high and low castes. Rules about commensality – who could eat with whom, and what food could be shared – were strictly enforced in many communities. Social contact between higher and lower castes was regulated in ways designed to prevent “pollution” of the upper castes. These restrictions translated into what G. S. Ghurye called “civil and religious disabilities” – legal and customary disadvantages that affected lower-caste groups in their access to public life. India’s Constitution, adopted in 1949-50, declared untouchability unlawful – a landmark legal rejection of the most extreme form of caste-based exclusion.

Why defining caste remains difficult 🔗

The challenge of defining caste goes beyond academic disagreement. Research during the latter twentieth century revealed that caste was far more complex and dynamic than previously understood – rather than being a fixed hierarchy, caste functioned as one of several possible forms of social organization and identity, and its significance varied considerably between regions. People could maintain multiple community affiliations, with caste sometimes taking precedence and other times giving way to other social bonds. Sociologist M. N. Srinivas, for instance, introduced the concept of the “dominant caste” – a group that wielded disproportionate economic and political power not necessarily tied to its position in the ritual hierarchy – demonstrating that social power in caste society was never purely a function of religious rank.

Additionally, the term “caste” as used by European colonial observers was sometimes applied imprecisely, conflating varna (the broad fourfold division) with jati (the specific local group). British colonial authorities had portrayed the caste system as uniform and rigid, whereas studies showed its significance and structure varied considerably between regions. This colonial framing had lasting consequences – it shaped both academic understandings and, significantly, the legal and political frameworks applied to caste in modern India.

In contemporary India, caste continues to intersect with politics, education, employment, and social identity. Between 2019 and 2020, Pew Research found that 98% of Indian adults identified as members of a caste – a figure that underscores how deeply embedded this form of social identity remains, even as urbanization, education, and legal protections have changed the ways caste operates in practice.

What do you think? If caste membership is determined entirely by birth rather than by ability or choice, how does this challenge the idea of a meritocratic society? And given that multiple eminent sociologists have struggled to produce a single universal definition of caste, does the complexity of the concept make it harder to address caste-based inequality through law and policy?

References

1. https://en.wikipedia.org/wiki/Caste_system_in_India
2. https://www.etymonline.com/word/caste
3. https://www.britannica.com/topic/caste-social-differentiation
4. https://en.wikipedia.org/wiki/Caste
5. https://www.merriam-webster.com/dictionary/caste
6. https://ebooks.inflibnet.ac.in/antp04/chapter/definition-criteria-of-caste-system/
7. https://www.sciencedirect.com/science/article/abs/pii/S0304387814001588
8. https://buddingsociologist.in/caste/
9. https://vajiramandravi.com/upsc-exam/caste-system-in-india/
10. https://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1043&context=socssp