Assam is not a chapter of India's tea industry so much as most of it. The Tea Board of India's 2025 count put the state at 687.76 million kilograms against a national total of 1,369.98 million, just over half the country's tea from one river valley. That scale is documented in general terms in India's Tea Industry; this page is the reference on Assam specifically, the region's own production structure, its market infrastructure, and the pressures now bearing on both. The single fact that organizes everything else here is that Assam's tea is grown under three different ownership models operating side by side in the same valley: large private estates, a shrinking state-owned corporation, and independent small growers, and the third group now supplies more of the crop than either of the other two.

A river valley that outproduces most countries

The Brahmaputra valley's growing conditions, heat, humidity, and heavy monsoon rainfall for most of the year, suit tea at industrial scale, and the numbers show it: production rose from 658.92 million kilograms in 2024 to 687.76 million in 2025, and April 2026 alone yielded 55.41 million kilograms, up nearly 34 percent on the same month a year earlier. Measured against other producing countries rather than against India's own states, Assam's output alone would rank it among the world's largest tea producers in its own right, ahead of Sri Lanka, Vietnam, and, on 2025's figures, Kenya itself. Who Grows It sets out that world ranking; the point here is that a single Indian state does that scale of work.

Three ways to own a garden

Who grows Assam's tea, and under what ownership, matters more to the industry's future than how much it grows. Three models coexist, and their fortunes are diverging sharply.

The large private estate is the classic model, dating to the Assam Company's founding gardens of the 1830s and 1840s, described in full in India's Tea Industry and Labour in the Gardens. It remains the biggest single producer by volume: McLeod Russel India, which describes itself as the world's largest tea-growing company, runs 31 estates in the Brahmaputra valley alone, producing roughly 90 million kilograms of tea a year across its full portfolio. But the model is under real financial strain. McLeod Russel has been in and out of insolvency proceedings since 2018, driven by a $390 million loan the company made in that year to a battery manufacturer under the same promoter group, not an outside borrower, which compounded a February 2020 default on a separate loan from Techno Electric and Engineering; add flooding, drought, rising labour costs, and falling exports, and in 2026 the company agreed to sell three Assam estates for a combined 88.85 crore rupees (about US$10 million) toward the 1,050 crore rupees (about US$120 million) of "sustainable debt" it owes the National Asset Reconstruction Company by February 2029. Tata's Amalgamated Plantations (APPL), the sector's other giant, has weathered the same cost pressures without the same debt crisis, a difference in balance-sheet discipline rather than in the underlying economics of running an estate.

The state-owned garden is Assam's least-discussed ownership model and its weakest. The Assam Tea Corporation Limited, a state government company, once ran 15 gardens; it now retains just six (Cinnamora, Chekla, Amulkhi, Bholguori, Longai, and Isabell), having leased the rest out to private operators, including Bokahola Tea Company (which took Negheriting, Rangamati, Michamara, and Dijuveli), Chapanla Tea ELP (Lung Chung and Jalinga), and Lunga (India) Private Limited (Nagineejan), according to Assamese-language reporting on the corporation's finances. Rather than being rehabilitated as public gardens, ATCL's estates are being wound down into the private sector one lease at a time. The reason is a wage crisis, not a production one: a Supreme Court commission found the corporation owed its workers 630.77 crore rupees (about US$72 million) in unpaid dues as of October 2021. The state government has since paid out 339.67 crore of that (around US$39 million); Assamese reporting on the corporation's finances puts what still remains unpaid to workers at roughly 298 crore rupees (close to US$34 million), years after the court's own directive. It is the clearest case in the Assam tea economy of an ownership structure failing the labour underneath it before it fails commercially.

The independent small grower is the model that has actually grown. Tea Board of India figures, as folded into the state's Farmers' Registry Portal, put Assam at 1,33,864 registered small tea growers, farming 1,26,107.64 hectares (roughly 312,000 acres), a little over a third of the state's tea land; a state-press estimate puts the working figure closer to two lakh (200,000) growers, a spread typical of a sector that is still being mapped rather than a disputed fact. What is not in dispute is the output: small growers supplied 30.12 of the 55.41 million kilograms Assam produced in April 2026, a clear majority of the month's harvest, and the state has moved to formalize their access to credit by folding tea land into its Farmers' Registry Portal, letting growers draw a Farmer ID for institutional loans and fertiliser subsidies. Who Grows It covers the small grower model globally; in Assam specifically, that model has grown from a marginal supplement to the estate sector into its single largest source of green leaf, sold to a separate bought leaf factory rather than processed on the grower's own land.

CTC by volume, orthodox by policy

Assam manufactures overwhelmingly CTC tea, the granular, machine cut black tea that fills most tea bags and suits the valley's high yielding bushes and mechanized estates; How the Trade Works sets out the CTC process in general. Orthodox, the whole leaf style, is a minority product here, but a policy priority: Assam (Orthodox) Tea has carried Geographical Indication protection since the late 2000s, one of the country's earliest tea GI registrations after Darjeeling's in 2003, restricting the name to leaf grown and made in the Brahmaputra valley from the Assamica variety. The state government backs that name with the Assam Tea Industries Special Incentives Scheme (ATISIS), which pays registered estates, bought leaf factories, and small growers a 10 rupee per kilogram (about 11 US cents) production subsidy on orthodox and specialty tea, a 3 percent interest subvention on working capital loans, and a quarter of the cost of new orthodox machinery; one disbursement round alone paid out 94.70 crore rupees, around US$11 million, across 486 gardens. The subsidy appears to be moving the number: orthodox sales at the Guwahati Tea Auction Centre roughly doubled, from 4.19 to 9.15 million kilograms, in the same period Assam's overall exports rose.

Where the leaf is sold

Assam's tea moves to market mostly through public auction, run in general terms in The Auctions and India's Tea Industry, which covers Guwahati's rise into the world's busiest CTC auction floor by volume. What has changed is the count of floors: the Tea Board discontinued the smaller Jorhat centre from April 2026, so Guwahati now stands as Assam's only sale point. That auction system sits inside the live fight over India's 50 percent public-auction mandate, which four grower associations representing close to 60 percent of north India's output have asked the government to withdraw, arguing the auction channel costs roughly 10 rupees (about 11 US cents) a kilogram more than a direct deal. A single Guwahati lot from the Deckiajuli estate set the auction's own record in 2026, at 1,103 rupees (about US$13) a kilogram, a reminder that record prices and a mandate producers want scrapped can coexist in the same market.

Exports, and what threatens them

Assam's tea reached 40 million kilograms of exports in the 2025-26 season, the state's first such figure in 25 years, with roughly half of that orthodox tea and the Gulf states (the UAE, Iran, and Iraq) the largest buyers. The GI registration underpins that push by keeping the Assam name exclusive to the valley's own leaf, and a zero-tariff tea line in the concluded India-EU trade agreement clears one obstacle, though a stricter EU pesticide-residue limit due to take effect could still shut out a meaningful share of Assam's premium exports. The weather is the more immediate threat, ahead of trade policy: Assam recorded a rainfall deficit of roughly 97 percent in January and February 2026, and the industry trade association has warned that continued West Asian instability could squeeze exports further just as the crop itself is under stress. Why a Drought Doesn't Always Raise the Tea Price sets out how a dry Assam monsoon actually moved the auction price the last time it happened, and traces the underlying trend behind it: rainfall in the district of Tinsukia, one of Assam's core growing districts, has fallen by more than 250 millimetres since 1921. The 2026 deficit is a single acute shock; that century-long decline is the supply story underneath it, cutting the flush and the green leaf volume with it well before any one dry season does.

Estate consolidation, plainly

Individual company results confirm what the sector-wide figures suggest: the estate model is being squeezed from more directions than the state corporation's wage crisis alone. Two disclosures in the same 2026 reporting season show the pattern from different angles. Dhunseri Tea's reported profit came almost entirely from selling two Assam estates rather than from growing tea, and Rossell India's tea revenue rose by nearly a quarter, lifted by a newly acquired Assam estate, while its profit still fell on writedowns and higher labour costs. Selling land and buying land can both read as strategy in an annual report; set against McLeod Russel's insolvency and the Assam Tea Corporation's retreat to six gardens, the pattern across the estate sector is consolidation and exit rather than expansion. Why Kenya's Tea Factories Never Consolidated sets out the opposite path a smallholder-cooperative structure took elsewhere; Assam's own smallholder growth is following Kenya's shape more than its own estates are.

What wages, working conditions, and the century of labour law behind them look like on the ground, across all three ownership models, is the full subject of Labour in the Gardens; Who Makes Money From a Cup of Tea traces where an Assam kilogram's value actually lands once it leaves the garden. Read together with those two pages and India's Tea Industry, this page is the reference on the region that supplies more of the world's tea than most tea-growing countries do, and on the three different ways, of increasingly unequal fortune, that supply gets grown.