Caste and Social Structure — Historical Survey

Caste and social structure in India refer to the hierarchical system of social organisation that divides Indian society into hereditary, endogamous groups (jatis) ranked by ritual purity and assigned prescribed occupations. Rooted in the Vedic varna (four-fold division) but implemented through thousands of regionally specific jati communities, the caste system has shaped Indian social, economic, religious, and political life across more than three thousand years — and remains central to the understanding of contemporary India for any UPSC aspirant.

What Are the Origins of the Caste System in Ancient India?

The earliest textual reference to the four-fold varna division is the Purusha Sukta (Rigveda 10.90), which mythologises the social order by deriving the four varnas from the body of the primordial cosmic being (Purusha): Brahmins from the mouth (priests and scholars), Kshatriyas from the arms (warriors and rulers), Vaishyas from the thighs (merchants and cultivators), and Shudras from the feet (servants). Most scholars date the Purusha Sukta to the later portions of the Rigveda (c. 1000–900 BCE), suggesting the varna system solidified after the earlier Vedic period when social divisions were more fluid.

The Dharmashastra tradition — particularly the Manusmriti (c. 200 BCE–200 CE) — codified varna obligations with great specificity: rules of diet, marriage, inheritance, ritual conduct, and legal rights and penalties differed sharply by varna. Crucially, the Manusmriti also elaborated the category of those outside the varna system — the "untouchables" (chandalas, matangas, nishadas) — who were assigned polluting occupations (handling corpses, leather, waste) and subjected to severe social exclusion and spatial segregation from varna Hindus.

Historical sociologists debate whether varna or jati was the more fundamental unit of caste. Early Buddhist and Jain texts (c. 500–300 BCE) frequently criticise Brahminical varna claims, suggesting the system was contested from its inception. The jati system — the thousands of regionally specific, endogamous occupational communities through which caste is actually lived — is distinct from the four-fold varna scheme and developed through a complex historical process that continues to be debated among scholars.

How Did Caste Function in Medieval India?

Medieval India (c. 600–1700 CE) saw the consolidation of jati as the operational unit of social organisation across most of the subcontinent. Key medieval developments include:

• Proliferation of jatis — The number of distinct jati groups increased substantially, as occupational specialisation, regional migrations, and the incorporation of tribal communities into the caste order multiplied endogamous groups.
• Ritual economy of temples — South Indian temple complexes formalised caste hierarchies through the allocation of ritual rights (processional precedence, the right to use palanquins, specific ritual honours) to different jatis. Disputes over these rights were a major form of social conflict.
• Caste and urban craft production — Medieval towns organised artisans by caste: weavers, potters, goldsmiths, and blacksmiths each had distinct quarters, guild-like organisations, and caste-specific occupational monopolies.
• Islam and caste — While Islamic theology is formally egalitarian, caste-like distinctions persisted within Indian Muslim communities: Ashrafs (claiming Arab, Persian, or Central Asian descent) distinguished themselves from Ajlaf (indigenous converts) and Arzal (lower-status converts). The Bhakti and Sufi movements challenged caste hierarchy but did not eliminate it.

How Did Colonialism Transform the Caste System?

British colonialism had a paradoxical effect on Indian caste: it simultaneously documented, rigidified, and politicised the system. The decennial Census of India (begun 1871) asked all residents to identify their caste, creating comprehensive data that made caste more visible as an administrative category. Census officials used scholarly works and local informants to rank jatis — a process that crystallised previously fluid or contested hierarchies into fixed official lists. Nicholas Dirks's Castes of Mind (2001) argues that the British census and administrative apparatus fundamentally transformed caste from a flexible system of local social relations into the rigid, all-India hierarchy that became the object of nationalist reform and anti-caste politics.

Colonial law also transformed caste: personal law was applied by religion, and within Hinduism by caste custom as codified by courts. Caste associations (sabhas) emerged in the late nineteenth century, using print culture and associational politics to assert community rights, challenge unfavourable ritual rankings, and claim higher social status — a process M. N. Srinivas called "Sanskritisation." The reservation system established in the Constitution (1950) for Scheduled Castes and Scheduled Tribes — later extended to Other Backward Classes under the Mandal Commission recommendations (1990) — made caste-based identity simultaneously a site of discrimination and a basis for protective rights, a paradox at the heart of Indian democratic politics.

Frequently Asked Questions

What is the difference between varna and jati in the Indian caste system?

Varna is the classical four-fold division (Brahmin, Kshatriya, Vaishya, Shudra) described in Sanskrit texts like the Manusmriti — a pan-Indian theoretical framework for ranking social groups by ritual purity and function. Jati is the actual operative unit of caste — a regionally specific, endogamous community with shared occupational traditions, marriage practices, and social identity. There are thousands of jatis in India, each approximately mapped onto one of the four varnas or classified as outside the varna system altogether.

What is untouchability and how did it arise in the caste system?

Untouchability refers to the social exclusion of groups classified as ritually impure by virtue of hereditary occupations involving contact with death, waste, or other "polluting" substances. Those classified as untouchables (referred to in colonial records as "depressed classes," by Gandhi as "Harijans," and self-identified as Dalits) were excluded from temples, wells, schools, and social contact with caste Hindus. The Manusmriti's category of chandalas is the earliest textual reference; the practice became entrenched across South Asian societies and has been a central target of social reform from Buddhism to B. R. Ambedkar.

How did the British census change the caste system?

The British decennial Census (from 1871) required all Indians to classify themselves by caste, creating comprehensive official lists that hardened previously fluid or contested social boundaries. Census commissioners ranked castes by ritual status, often using contestable criteria. The process made caste more visible as an administrative and political category, enabling caste-based mobilisation and claims for representation. Nicholas Dirks argues in Castes of Mind (2001) that the census effectively transformed caste from a local, contextual system of social relations into an all-India, enumerable hierarchy — a transformation with lasting political consequences for Indian democracy.

What is Sanskritisation and how does it relate to social mobility within the caste system?

Sanskritisation, a concept developed by sociologist M. N. Srinivas, refers to the process by which a lower-caste group raises its social status by adopting the customs, rituals, ideology, and way of life of a higher (typically twice-born) caste — giving up meat, alcohol, and "polluting" occupations and claiming Kshatriya or Brahmin ancestry. Srinivas identified this as a primary mechanism of social mobility within the caste system, operating without changing the structure of the system itself. Critics note that Sanskritisation reinforces Brahminic values rather than challenging caste hierarchy.

How did Bhakti and Sufi movements challenge caste hierarchy?

The Bhakti and Sufi movements of the 12th–17th centuries challenged caste hierarchy through their theology of direct devotion — arguing that God's grace was available to all regardless of birth, and that ritual purity was less important than sincere devotion. Kabir (a weaver), Raidas (a cobbler), and Tukaram (from the mali community) composed devotional poetry that explicitly challenged Brahminical authority and caste distinctions. However, these movements did not structurally transform caste — their followers often formed new caste-like sects, and social discrimination continued alongside devotional equality.

Sources and Further Reading

This article draws on IGNOU's BA History curriculum: BHIC-131 (History of India: Earliest Times to 300 BCE), BHIC-132 (History of India: 300 BCE–1206 CE), BHIC-133 (History of India: 1206–1707), and BHIC-134 (History of India: 1707–1950). Key secondary works include M. N. Srinivas, Caste in Modern India; B. R. Ambedkar, Annihilation of Caste (1936); Nicholas Dirks, Castes of Mind (2001); and Romila Thapar, Early India. For UPSC, consult the NCERT Class XI Ancient India textbook and Bipan Chandra, Modern India.