Tribal Communities of Eastern India: A Look at Bihar, Jharkhand, West Bengal and Odisha

Step outside the neat boundaries of a political map and Eastern India tells a different story altogether. Bihar and West Bengal spread across the fertile Indo-Gangetic plain, Jharkhand rises into the rugged Chota Nagpur plateau, and Odisha stretches across the Eastern Ghats and the Deccan tableland. This is also the stretch of the country where India’s mineral wealth, its coal, iron ore, bauxite and mica, sits closest to the surface. And it is here, in these forested hills and river valleys, that some of India’s oldest tribal communities have lived for centuries. Understanding their world means understanding both the land beneath their feet and the pressures that come with sitting on top of a mineral goldmine.

The mineral heartland: geography of tribal Eastern India 🔗

The four states of Bihar, Jharkhand, West Bengal, and Odisha form a geographically varied belt. Bihar and the plains of West Bengal lie on the alluvial Indo-Gangetic plain, shaped over millennia by the Ganga and its tributaries. Jharkhand, carved out of southern Bihar in 2000, sits almost entirely on the Chota Nagpur plateau, an ancient Precambrian landmass bordered by the Indo-Gangetic plain to the north and the Mahanadi river basin to the south, and known for holding some of the oldest hard-rock terrain in the country. Odisha, meanwhile, falls within the Eastern Ghats and the edge of the Deccan plateau, giving it hill ranges, coastal plains, and dense forest tracts all within one state.

This geological diversity is exactly why the region is often called India’s mineral hinterland. Coal, iron ore, bauxite, copper, and mica deposits run through Jharkhand and Odisha in particular, feeding the country’s steel plants and power stations. But mineral wealth and human settlement rarely sit comfortably together, and this tension has shaped the history of the region’s tribal population for well over a century.

An ancient ethnic thread 🔗

Most of the tribes native to this belt, including the Santhal, Munda, and Oraon, are generally classified under the Proto-Australoid ethnic group, one of the older population groups associated with the Indian subcontinent. This shared ancestry does not mean cultural uniformity. Each tribe has its own language, festivals, and social organisation, but the ethnic link explains why anthropologists often study them together as a regional cluster rather than as isolated, unrelated communities.

Who are the tribes of Eastern India? 🔗

Across these four states, a handful of tribes dominate the demographic picture: the Santhal, Munda, Oraon, Ho, Gond, and Bhumij. The Santhal are among the largest tribal groups in the country and are spread across all four states, while the Ho and Munda are concentrated more heavily in Jharkhand’s Chota Nagpur region. The Oraon, who speak the Dravidian language Kurukh, are found across Jharkhand, West Bengal, Odisha, and parts of Chhattisgarh, making them one of the more geographically dispersed tribes in the belt.

Odisha’s exceptional tribal diversity 🔗

Of the four states, Odisha stands out for sheer tribal diversity. The state’s ST & SC Development Department recognises 62 distinct Scheduled Tribe communities, including 13 groups classified as Particularly Vulnerable Tribal Groups. Scheduled Tribes make up close to 23 percent of Odisha’s total population, giving the state the third-largest tribal population in the country by numbers. This concentration is closely tied to Odisha’s terrain: the hilly, forested interior of districts like Koraput, Kandhamal, and Mayurbhanj has historically been harder to access, which allowed many smaller tribal groups to retain distinct identities rather than merging into larger regional cultures.

Jharkhand, by comparison, has a somewhat narrower but still significant tribal base, concentrated mainly in the South Chotanagpur, Kolhan, and Santhal Pargana divisions. Bihar and West Bengal, being more agrarian and urbanised in large parts, have comparatively smaller and more localised tribal populations, though pockets in places like Jalpaiguri and Purulia remain strongly tribal in character.

Displacement in the shadow of minerals 🔗

The same mineral wealth that makes this region economically important has also been the source of its greatest disruption. Large-scale mining, dam construction, and industrial projects have repeatedly required acquiring land in tribal areas, and tribal communities have borne a disproportionate share of the resulting displacement. Studies on Jharkhand’s mining belt point out that displacement here brings not just loss of land, but also environmental damage such as deforestation and water contamination, which further erodes the resource base that displaced families depend on even after resettlement.

The human cost of development 🔗

Odisha offers some of the most closely studied examples of this conflict. The prolonged movement by the Dongria Kondh community against bauxite mining on Niyamgiri hill became a landmark case, eventually leading the community to reject the project through a legally mandated village-level consultation. Research on the episode notes that Odisha did introduce a formal Resettlement and Rehabilitation Policy in 2006, laying out compensation, land, and employment provisions for those displaced by mining and industrial projects. Yet implementation has remained patchy, and many displaced families report receiving inadequate compensation or being resettled without proper documentation of their new land rights.

The deeper issue is cultural, not just economic. Tribal life in this region has traditionally been organised around communal ownership of forest and farmland. When a family is displaced and resettled elsewhere, individual compensation packages often fail to recreate the social and economic structures that communal land ownership supported. This is a large part of why displacement in tribal Eastern India tends to disrupt identity and social cohesion, not just income.

From forests to fields to factories: changing economic occupations 🔗

The economic life of tribes in Eastern India has shifted dramatically over the past century. Hunting, gathering, and fishing, once central to tribal subsistence, are now rarely practised as primary occupations. Most tribal communities in the region today are settled agriculturists, a shift that took hold gradually as forest cover shrank and land came under greater administrative control.

Two occupations now stand out as dominant sources of livelihood beyond farming: mining and tea cultivation. Given that Jharkhand and Odisha sit on some of India’s richest mineral belts, a significant share of the tribal workforce is employed directly or indirectly in mining operations, often in low-paid, physically demanding roles. This has its own health costs; reports on Jharkhand’s mining regions have flagged rising cases of occupational illnesses such as silicosis among workers in mines and allied industries.

The tea garden economy 🔗

In North Bengal’s Dooars and Terai belt, tea gardens have historically absorbed large numbers of tribal workers, many descended from communities brought in during the colonial period from the Chota Nagpur region to work as plantation labour. This arrangement continues today, though not always securely. Research on the Dooars tea belt describes how plantation labour has long operated under oppressive work conditions with limited job security, and closures of tea estates have repeatedly pushed workers, especially tribal women, into precarious migration to cities in search of alternative income. Recent reporting from the region confirms this pattern is still active, with tribal women from shut-down gardens migrating to distant cities for domestic work, sometimes falling into exploitative situations along the way.

Rain, risk, and rural livelihoods 🔗

Away from mines and tea estates, forest-covered tracts such as Medinipur in West Bengal, Singhbhum in Jharkhand, and Mayurbhanj in Odisha remain predominantly tribal in population and largely agrarian in occupation. The catch is that these areas mostly lack developed irrigation infrastructure. Farming here depends heavily on the monsoon, which means a poor rainfall year can translate directly into food insecurity and debt. This rainfall dependence, combined with limited non-farm employment options, keeps many tribal households in a cycle of seasonal migration, moving out for wage labour when the fields cannot sustain them through the year.

Put together, the picture that emerges is of communities whose economic lives have been reshaped repeatedly, first by colonial plantation economies, then by post-independence industrialisation, and now by the continued expansion of mining. Through all of this, agriculture has remained the constant, even as its reliability keeps shrinking under the pressure of erratic rainfall and shrinking landholdings.

What do you think? 🔗

What do you think? Given how closely tribal livelihoods in this region are tied to mineral-rich land, what would a fairer balance between industrial development and tribal land rights actually look like? And do you think stronger irrigation infrastructure in tracts like Singhbhum or Mayurbhanj could meaningfully reduce the distress migration seen in tribal households today?

References

1. https://www.sciencedirect.com/science/article/pii/S266603342300014X
2. https://www.ias.ac.in/article/fulltext/jbsc/028/04/0507-0522
3. https://stsc.odisha.gov.in/en/about-us/about-department
4. https://rsisinternational.org/journals/ijriss/view/tribal-displacement-in-mining-centric-zones-in-jharkhand-a-need-for-policy-interventions-to-protect-the-rights-of-tribal-people
5. https://journals.sagepub.com/doi/full/10.1177/0972558X221096265
6. https://migrationaffairs.com/labour-migration-in-the-tea-plantations/
7. https://theindiantribal.com/2026/06/16/how-tribal-women-in-north-bengals-tea-gardens-are-paying-the-price/