A tea garden almost never closes on one bad harvest. It closes when the cost of growing, plucking, and processing a kilo of tea sits above what the auction will pay for it, season after season, until the gap compounds into debt no restructuring can outrun. That threshold is arithmetic, not sentiment, and the two ends of India's tea map show it working at completely different scales. In Assam, the mass-market CTC engine, the squeeze is slow: the margin between cost and price has been shrinking for over a decade and has not yet forced most estates to shut. In Darjeeling, the small, high-cost orthodox hills, the same equation has already closed 13 of 87 gardens.

The equation, and why it took so long to bite in Assam

Between 2010 and 2024, the official figures put the average cost of producing a kilogram of Assam tea at Rs 80, rising to Rs 140 (about $1.75 to $1.68 a kilo at the exchange rates of those years). The average selling price barely kept pace: Rs 120 to Rs 145 a kilo over the same span (about $2.63 to $1.74). Divide the difference by the price and the margin falls from 33 percent to a bare 3 percent, according to History of Ceylon Tea's account of that data. A garden running on a 3 percent margin is not yet closed. It is one bad monsoon, one wage order, or one lender's patience away from it.

Cost has stayed ahead of price into 2026. The Tea Board's own auction data, reported by The Sentinel, shows North India realisations (the zone covering Assam, the Dooars, and Darjeeling together) actually improving early this year: Rs 168.38 a kilo in January, Rs 160.17 in February, Rs 184.11 in March (roughly $1.83, $1.74, and $2.00), each ahead of the same month a year earlier. That should read as good news, and by itself it is. But fertiliser, fuel, energy, and above all labour have kept rising faster than that gain, which is the specific complaint the Indian Tea Association has been making publicly this year: that the modest price recovery "has not been enough to counter rising expenses," in Mahabahu's account of the association's position. A 97 percent rainfall deficit across Assam in January and February 2026 did not help either side of the ledger, cutting the harvest a garden needed to spread its fixed costs over.

Wages are the reason the squeeze is structural rather than cyclical. A permanent worker in an Assam or Dooars garden is paid by the day, not by the kilo plucked, so the wage bill does not shrink in a thin week the way a fertiliser order can be deferred or a plucking round skipped. When state governments raise the statutory daily wage, and Assam and West Bengal have both done so repeatedly in recent years under sustained union pressure, that increase lands on the cost side of the equation immediately and permanently, while the price side depends on an auction the garden does not control. A garden can cut everything else. It cannot, without breaking the law and its own labour supply, cut the wage floor.

Two gardens, two speeds

Darjeeling's arithmetic runs the same equation at a far smaller, far more expensive scale. The region's orthodox tea, hand-processed on high ground with low yields per hectare, cost an estimated Rs 600 to 650 a kilo or more to produce in 2023, depending on elevation, against an average Kolkata auction realisation that year of just Rs 319.74 a kilo, an eight-year low, Business Standard reported, citing Calcutta Tea Traders Association data. The Indian Tea Association's own chairman put the resulting loss at more than Rs 200 a kilo (roughly $2.42 at that year's rate) on every kilo sold. Of the region's 87 gardens, 11 to 12 were already closed by early 2024; Down To Earth's reporting in June 2026 put the count at 13, with roughly 40 gardens closed across the wider Terai, Dooars, and Darjeeling belt combined. Darjeeling accounts for just 0.47 percent of India's total tea production, on Business Standard's own figure. Its brand recognition, built over more than a century, has not been enough to keep its cost structure solvent against a market that pays for the leaf, not the reputation.

Assam's CTC gardens have so far avoided that fate almost entirely, not because their arithmetic is healthier but because their scale gives it more room to absorb a thin margin. A 3 percent margin on a large-volume, mechanised CTC operation still produces enough cash to service debt and pay wages in a normal year, in a way a hand-plucked orthodox garden's much larger per-kilo loss cannot. That difference in structure, mechanised volume against hand-processed scarcity, is the reason the same national cost pressure has closed a seventh of Darjeeling's gardens while Assam's have mostly stayed open and simply changed hands.

What closure looks like before it looks like closure

Outright closure, a padlocked gate and an idle factory, is the visible end state, but the arithmetic usually shows up first as a change of ownership. Assam has had a run of exactly that in 2026. Camellia Plc's Goodricke unit sold its Chalouni Tea Estate in the Dooars for Rs 19 crore (about $2 million) in May, the latest disposal under a group-wide plan explicitly aimed at "reducing risk," after an earlier attempt to sell a different estate collapsed in due diligence. McLeod Russel, once the world's largest tea-growing company by area and now under a lender-led debt restructuring, has signed memorandums of understanding to sell three more Assam estates this spring, Nya Gogra, Rupajuli, and Boroi, for a combined Rs 88.85 crore (roughly $9.3 million), sales still pending due diligence and regulatory approval, to help fund a settlement that would cut its sustainable debt from Rs 2,483.30 crore (about $282 million) to Rs 1,050 crore (about $119 million), while its own auditors have already flagged material doubt about the company's ability to continue as a going concern. Dhunseri Tea's FY26 accounts turned a narrower loss only because it sold two estates, Balijan North and assets tied to Deohall, not because tea itself got any cheaper to grow. In each case the tea garden did not vanish. The arithmetic simply moved to a new owner's balance sheet, on the bet that a different cost structure, or a buyer willing to run at a thinner margin, can make the same hectares pencil out.

The ledger that never quite closes

The starkest version of the equation belongs to Assam's own state-owned operator. The Assam Tea Corporation once ran 15 gardens directly; today it retains only six, having leased the rest out to private operators, among them Bokahola Tea Company, Chapanla Tea E.L.P., and Lung Chung and Jalunga Tea, according to Assamese-language reporting on the corporation's finances. The trigger was not the auction price at all. A Supreme Court-appointed commission found that, as of October 31, 2021, the corporation owed its workers Rs 630.77 crore (roughly $85 million at that year's exchange rate) in unpaid wages and dues. The state government has been paying that down since, disbursing Rs 339.67 crore (about $40 million), but as of a fresh accounting in May 2025 the corporation still owed roughly Rs 298 crore (about $35 million) to the people who picked its tea. Here the ordinary cost-of-production equation was never the binding constraint. The garden failed its labour ledger years before anyone needed to check whether the leaf itself was profitable, and the state's answer has been the same one private owners reach for: hand the hectares to someone else and let a different balance sheet carry the arithmetic forward.

That is, in the end, what "a tea garden closes" usually means in practice. Far more often the tea bushes stay in the ground and the workers stay in the lines, while the entity responsible for making the cost side of the ledger balance changes, sold at a discount, leased to a smaller operator, or restructured under a lender's terms. The garden survives the closure. What closes is the previous owner's ability to make the equation work.