Coal India Limited is a government owned coal mining company headquartered in Kolkata, formed in 1975 when the country's nationalised mines were brought under one holding company. It is the largest coal producer in the world by output and accounts for the great majority of the coal mined in India. It is a Maharatna central public sector enterprise, one of the most profitable listed companies in the country, and the company whose production decides whether India's power stations have fuel.
Last edited 16 October 20263 revisions10 sourcesReading time 24 min
Timeline
1956The government sets up the National Coal Development Corporation, with the collieries of the railways as its nucleus.Singareni Collieries is also brought under state control
1971All 214 coking coal mines and 12 coke ovens in the private sector are nationalised, leaving out the captive mines of the steel companies.
1972Bharat Coking Coal Limited is formed on 1 January to take charge of the nationalised coking coal mines and coke ovens.
1973The remaining 711 non coking coal mines in private hands are nationalised on 30 January, with 184 going to Bharat Coking Coal and 527 to a new Coal Mines Authority.
1973The Coal Mines Authority is converted into a government company on 14 June, with four divisions covering the eastern, central and western coalfields.
1974Bharat Coking Coal and the Coal Mines Authority are moved on 11 October under the Department of Coal, which later becomes a full ministry.
1975Coal India Limited is formed on 1 November, taking over the four divisions and Bharat Coking Coal as five subsidiary companies.The parent company of the nationalised coal industry
1970sConstruction of India's first low temperature carbonisation plant begins at Dankuni in West Bengal.Later renamed the Dankuni Coal Complex
1986Northern Coalfields Limited is carved out of Central Coalfields Limited to run the Singrauli mines.
1992South Eastern Coalfields Limited and Mahanadi Coalfields Limited are created out of the older subsidiaries, taking the number of producing companies to seven.
1995The Dankuni Coal Complex is leased to South Eastern Coalfields Limited.
2009International Coal Ventures Private Limited is formed with other public sector companies to buy coking coal properties abroad.
2010In October the government sells 10 per cent of the equity in an initial public offering that is subscribed more than 14 times over, and the shares list at a large premium.
2011Coal India is granted Maharatna status in April, one of a small group of public sector companies with that standing.
2011The company is added to the 30 member BSE Sensex on 8 August.
2015In January the government sells another 10 per cent through an offer for sale at 358 rupees a share, raising about 22,557 crore rupees.
2015The government approves a further 10 per cent stake sale in November, part of a series of sell downs.
2016The company produces about 536.51 million tonnes of coal in the year to March 2016.
2017Raw coal production reaches 554.14 million tonnes in 2016-17, with revenue of about 95,435 crore rupees from coal sales.
2019Research published in the Guardian names Coal India among the twenty firms responsible for a third of global carbon emissions.
2022Consolidated net profit for the quarter ended March 2022 rises almost 46 per cent, on sales of about 30,046 crore rupees.
2023The government's holding is reported at 63.13 per cent as of December, with domestic institutions holding about 23.53 per cent.
2024Emissions attributed to Coal India are estimated at about 1,513 million tonnes of carbon dioxide, or about 3.92 per cent of the global total.
2024Coal India and NHPC agree to convert abandoned mines into pumped storage projects for electricity.
2025The workforce falls to 220,272 in March 2025 from 232,592 in November 2023, as retirements outpace recruitment.
2025The company reports revenue of about 1,43,369 crore rupees and a net profit of about 35,302 crore rupees for the year ended March 2025.
What it does
Coal India Limited is an Indian state owned coal mining company headquartered in Kolkata. It is the largest coal producer in the world by output, it works under the administrative control of the Ministry of Coal, and it is the company that supplies the fuel which most of India's power stations burn.[1]
The business is narrower than most large Indian companies and far larger in volume. Coal India mines coal, washes some of it, grades it and sells it, mostly to power generating companies under long term supply agreements. It accounts for about 82 per cent of the total coal produced in India, which makes it less a participant in the Indian coal market than the market itself.[1]
The scale is the story. In 2016-17 the company produced 554.14 million tonnes of raw coal, up from 494.24 million tonnes in 2014-15, and it earned about 95,435 crore rupees from the sale of coal in that year. For the year ended March 2025 the company reported revenue of about 1,43,369 crore rupees, an operating income of about 51,640 crore rupees and a net profit of about 35,302 crore rupees.[1]
For a reader outside the industry, three things about Coal India matter. It is the single largest supplier of energy to the Indian electricity system, it is one of the most profitable companies the government owns, and it is also, by the measure used in international climate research, one of the largest single sources of carbon emissions in the world. All three facts describe the same business.[1][5]
History
Coal mining in India began as a private business and became a state business in stages. In September 1956 the government set up the National Coal Development Corporation, built around the collieries the railways already ran, and in the same year Singareni Collieries, which had operated in Andhra Pradesh since 1920, passed under government control when the centre and the state took 45 and 55 per cent of the shares.[1]
The larger change came after 1971. The government nationalised all 214 coking coal mines and 12 coke ovens in the private sector, leaving out only the captive mines that the steel companies ran for themselves, and on 1 January 1972 formed Bharat Coking Coal Limited to hold them. On 30 January 1973 it nationalised the remaining 711 non coking coal mines, handing 184 to Bharat Coking Coal and 527 to a newly created Coal Mines Authority. In June 1973 that department became a company of its own, and in October 1974 both it and Bharat Coking Coal were placed under the Department of Coal.[1]
Coal India Limited was formed on 1 November 1975 as the holding company that would give the nationalised industry one structure. The four divisions of the Coal Mines Authority became subsidiary companies, Bharat Coking Coal joined them, and the government's 45 per cent stake in Singareni Collieries passed to Coal India. In time three more producing companies were carved out, Northern Coalfields, South Eastern Coalfields and Mahanadi Coalfields, and the Central Mine Planning and Design Institute was kept as the technical and exploration arm.[1]
For its first thirty five years the company was wholly owned by the government. That changed in October 2010, when the state sold 10 per cent of the equity in an initial public offering of 631.6 million shares at 245 rupees each. The issue was subscribed more than 14 times, the company listed with a 40 per cent gain on the first day, and it became the fourth most valuable company on the Indian exchanges with a market value of about 2.16 lakh crore rupees.[1]
The government has used the stake as a source of funds since then. A further 10 per cent was sold in an offer for sale in January 2015 at 358 rupees a share, raising about 22,557 crore rupees in what was at the time the largest equity offering in the Indian market, and another 10 per cent sale was approved in November 2015. Times of weak coal demand and times of strong demand have both been used as windows for selling down the state's holding.[3][4]
Founders and leadership
Coal India has no private founders. It was created by the Government of India, from companies that the government had itself nationalised or set up, and its ownership has stayed with the state, which held 100 per cent of the equity from 1975 until the public offering in 2010.[1]
The company is run by a chairman and managing director supported by functional directors for production, finance, personnel, marketing and technical matters, and each producing subsidiary has its own managing director. B. Sairam is listed as chairman and managing director in 2026. Because the government is the owner, appointments are made through the public enterprise process and the ministry's approval, and senior management changes are watched by the unions and by the state governments whose economies depend on the mines.[1]
The Maharatna status the company received in April 2011 matters more than it sounds. It gives the board the power to take large investment decisions without going back to the government for each one, which in practice is what allowed Coal India to fund new mines, washeries and diversification projects from its own balance sheet. Only a handful of central public sector enterprises hold the status.[2]
The board also carries an unusual social obligation. Coal India is one of the largest employers in the eastern coalfields, and the rehabilitation and employment promises attached to land acquired for mining, including jobs given to families whose land was taken, are a permanent part of its relationship with the districts it mines in.[1]
Coal mining and operations
The company operates through 83 mining areas spread across eight states of India. As on 1 April 2015 it had 430 coal mines, of which 175 were open cast, 227 were underground and 28 were mixed. The balance between the two kinds of mine explains the company's economics: open cast mines produced 92.91 per cent of the total output of 494.24 million tonnes in 2014-15, while underground mines contributed only about 7.09 per cent, because underground mining costs far more per tonne.[1]
Coal washing is the other half of the operation. Coal India runs 15 coal washeries, 12 of them for coking coal and three for non coking coal, with capacities of 23.30 million tonnes a year and 13.50 million tonnes a year respectively. Washed coal sells at a higher price and travels better, and the company has been adding washeries as power stations and steel plants demand coal with less ash in it.[1]
Around the mines sits an infrastructure that no mining company elsewhere in India carries: workshops, hospitals, training institutes, mine rescue stations and townships. The company manages about 200 such establishments in addition to the mines themselves, and they are the reason its employee numbers stay above two lakh even as the machinery gets bigger and the mines need fewer people.[1]
The one industrial plant outside mining is the Dankuni Coal Complex in West Bengal, built in the late 1970s as India's first low temperature carbonisation plant under the fuel policy of 1974. It is described as one of the only operational coal gas plants of its kind in the world, it has run at a loss for years because the buyer of its gas has fixed non remunerative prices unilaterally, and Coal India has been examining coal to methanol technology at the site as a way to give it a future.[1]
Subsidiaries and mining areas
Coal India produces coal through seven wholly owned subsidiaries, each responsible for a set of coalfields and each with a board and balance sheet of its own. They are Eastern Coalfields, Bharat Coking Coal, Central Coalfields, Western Coalfields, South Eastern Coalfields, Northern Coalfields and Mahanadi Coalfields. An eighth company, the Central Mine Planning and Design Institute, does exploration, planning and design work for the group and also sells consulting and testing services to outside clients.[1]
The subsidiaries differ sharply in size and in the coal they produce. South Eastern Coalfields, with 41,743 employees and production of about 118.22 million tonnes in the year covered by the company's own table, is the largest producer, and Mahanadi Coalfields, with 21,770 employees and about 107.89 million tonnes, has the highest output per person. Bharat Coking Coal and Central Coalfields are the coking coal producers, supplying the steel industry.[1]
The smaller units matter as well. Northern Coalfields runs the Singrauli mines that feed the large power stations of the region, Western Coalfields supplies the industrial belt of Maharashtra and Madhya Pradesh with 34,289 employees, and Eastern Coalfields, with 50,867 employees, is the largest employer in the group. North Eastern Coalfields and the Dankuni Coal Complex are owned directly by the parent company, and the Dankuni complex has been leased to South Eastern Coalfields since 1995.[1]
The group structure explains why Coal India's consolidated accounts look different from any single company in it. Each subsidiary sells coal to its own customers and holds its own overburden removal contracts, and the parent earns a large part of its income through the coal that moves between them and through the royalty and levies paid to state governments.[1]
Production and offtake
Coal India's year is measured in million tonnes, in two numbers that do not always match: production, which is what the company digs, and offtake, which is what it despatches to customers. When the two numbers diverge, coal is piling up at the pitheads, and when offtake runs ahead of production, power plants are drawing down their stockpiles. Both situations have happened repeatedly in the last decade.[1]
The customers are mostly power producers. State generation companies, NTPC and the private generators buy the bulk of the coal under long term fuel supply agreements that carry a minimum quantity and a penalty when the company fails to deliver it. A smaller volume goes to steel, cement, sponge iron and other industrial users, and a very small share is sold through spot auctions where the price is discovered by bidding.[1]
Production has grown in steps rather than in a straight line: 494.24 million tonnes in 2014-15, about 536.51 million tonnes in 2015-16 and 554.14 million tonnes in 2016-17, when revenue from coal sales was about 95,435 crore rupees. The company has set higher targets repeatedly since then, and meeting them depends on land acquisition, environmental clearances, railway evacuation capacity and the weather during the monsoon months, all of which are outside its direct control.[1]
Evacuation is the quiet constraint. Coal that cannot leave the mine is coal that is not sold, and the railway network over the coalfields in Jharkhand, Odisha, Chhattisgarh and Madhya Pradesh has been the bottleneck in several years. Coal India and the railways have therefore treated new rail links and first mile connectivity projects as part of the mining plan rather than as a separate transport matter.[1]
Revenue and financials
Coal India is one of the most profitable companies the Government of India owns. For the year ended March 2025 the company reported revenue of about 1,43,369 crore rupees, operating income of about 51,640 crore rupees, a net profit of about 35,302 crore rupees, total assets of about 2,60,198 crore rupees and shareholder equity of about 99,951 crore rupees.[1]
The margin on that revenue is the number that makes the company unusual among state owned enterprises. A net profit of about 35,302 crore rupees on revenue of about 1,43,369 crore rupees is a margin of roughly one quarter, which is high for a commodity producer and is a consequence of the way coal prices in India are fixed: the company's notified prices are administratively set with reference to grades, and its cost of production, being mostly labour and overburden removal, rises slowly.[1]
The profit record has been volatile at the quarterly level. In the quarter ended March 2022 the company reported a rise of almost 46 per cent in consolidated net profit, on sales of about 30,046 crore rupees compared with about 24,510 crore rupees a year earlier, as power demand recovered and international coal prices spiked after the war in Ukraine. Those high prices also pulled up the price of imported coal to levels where Indian buyers returned to domestic supply.[1]
The company's cash generation is what funds its capital spending, since it carries almost no debt and pays a large dividend to the government each year. Dividends have made Coal India a favourite of domestic institutional investors, who held about 23.53 per cent of the equity as of December 2023, and the shares have been a regular part of the small group of blue chip counters that move market capitalisation on any given day.[1][10]
Shareholding and ownership
The Government of India remains the controlling shareholder with 63.13 per cent of the equity as of December 2023, alongside a further 0.10 per cent reported as other government holding. Domestic institutional investors held about 23.53 per cent, foreign institutional investors about 8.22 per cent, and the public and other holders about 4.00 per cent.[1]
That structure is the result of a series of sell downs after the 2010 listing. The first offering sold 10 per cent, the January 2015 offer for sale sold another 10 per cent at 358 rupees a share for about 22,557 crore rupees, and in November 2015 the government approved a further 10 per cent sale. Each of those moves was part of the central government's annual disinvestment programme rather than a decision about the company itself.[3][4]
For the market, the state's holding is both a support and a risk. It supports the share price because the company pays large dividends and because the government has a stake in keeping the company healthy; it weights on the price because every announcement of a further stake sale creates new supply of shares.[4]
The shares trade on the Bombay Stock Exchange under scrip code 533278 and on the National Stock Exchange under the symbol COALINDIA. The company was added to the BSE Sensex in August 2011 and has been a constituent of the Nifty 50 for most of the period since, and it appears regularly among the blue chips whose market capitalisation moves most in a session.[1][7][8][10]
Employees and offices
Coal India is one of the largest industrial employers in India. The workforce was 232,592 in November 2023, 228,861 on 1 April 2024 and 220,272 in March 2025, a steady decline as experienced miners retire and the company replaces fewer of them. Of the total, only about 16,000 are executives and more than two lakh are non executives.[1]
The composition of that workforce is a legacy of the nationalisation. The mines inherited a large permanent labour force with housing, medical facilities, schools and canteens attached to the job, and the company still runs hospitals, workshops, training institutes and mine rescue stations across the coalfields. The wage agreement covering non executives is negotiated nationally with the unions and revised every few years, and each revision is a significant event in the company's cost base.[1]
Headquarters are in Kolkata, with the parent company's corporate functions there and the producing subsidiaries headquartered near their coalfields at Sanctoria and Asansol in West Bengal, Dhanbad and Ranchi in Jharkhand, Bilaspur in Chhattisgarh, Singrauli in Madhya Pradesh, Sambalpur in Odisha and Nagpur in Maharashtra. The Central Mine Planning and Design Institute is based in Ranchi.[1]
Joint ventures and diversification
International Coal Ventures Private Limited was formed in 2009 with other public sector companies to buy coking coal properties outside India, and Coal India holds a two sevenths share of its paid up capital.[1]
CIL NTPC Urja Private Limited is an equal joint venture with NTPC, formed in April 2010 to acquire coal blocks in India and abroad.[1]
Bharat Coal Gasification and Chemicals Limited and Coal Gas India Limited are newer joint ventures for coal gasification projects.[1]
A wholly owned subsidiary in Mozambique, Coal India Africana Limitada, was set up to pursue coal mining opportunities there.[1]
Coal India and NHPC have agreed to convert abandoned or de-coaled mines into pumped storage projects, using the pits as reservoirs for hydro electricity storage.[6]
The company is implementing eight pumped storage projects with the help of NHPC.[1]
Coal to methanol technology is being examined at the Dankuni Coal Complex, which already produces coal gas.[1]
Solar power plants have been built on reclaimed mine land and at offices and workshops, and the company plants trees on overburden dumps as part of its closure plans.[1]
Coal bed methane and underground coal gasification pilots are run with partners as long term options on the gas inside the coal seams.[1]
The logic behind these ventures is straightforward. Coal India has a very large cash balance and a business whose long term demand depends on how fast India builds renewable capacity, so it uses the money in two directions: buying coking coal assets abroad, because India imports most of the coking coal its steel industry needs, and investing in storage, gasification and solar, because those are the businesses that a mining company can grow into as the power system changes.[1][6]
The pump storage plan is the clearest example of the shift. An abandoned open cast mine is a pit with a large volume, which is exactly what a pumped storage plant needs: water is pumped uphill when electricity is cheap and released through turbines when it is not. Turning de-coaled mines into batteries is a way for the company to earn from the energy transition rather than only from coal.[6]
Coal imports, exports and the market
India is the second largest producer and consumer of coal in the world but it also imports coal, because the coal it digs is mostly high ash thermal coal and because the steel industry needs low ash coking coal that the country does not produce in sufficient quantity. Coal India's coking coal subsidiaries, Bharat Coking Coal and Central Coalfields, supply what they can to the steel plants, and the rest of the coking coal requirement is imported from Australia, Indonesia, Russia and Mozambique.[1]
On the thermal side the position is closer to self sufficiency. Coal India supplies power stations directly and through e auctions, and it has at times sold coal at prices linked to imported coal to win back customers who had switched to imports. Imports of Russian coking coal rose sharply during the war in Ukraine, with Indian buyers taking about 5.2 million tonnes between January and August 2024, a 53 per cent increase over the previous year, because the coal was available at a discount to Australian cargoes.[1]
Exports are small. Coal India's overseas subsidiary in Mozambique was created mainly to secure coal for Indian use rather than to sell into world markets, and the country's coal export trade is limited compared with Indonesia or Australia. The company's role in the world market is as a very large buyer of equipment and, at the margin, of coking coal.[1]
The domestic market is also where policy is set. The government has allowed commercial mining by private companies, auctioned coal blocks to private and public bidders, and pushed Coal India to increase output to cut imports. Those changes have not yet moved the company's share of Indian production much below 80 per cent, and they are the main competitive development in its home market.[1]
Competition
For most of its life Coal India had no meaningful competitor in India. That is changing slowly. Singareni Collieries, owned jointly by the Telangana government and the central government, is the second largest domestic producer, and the Captive Mining and commercial mining auctions have created a new set of private producers such as Adani Enterprises, Vedanta, Jindal Steel and JSW, which mine coal for their own plants and in some cases sell it.[1]
The private producers compete differently. They mine specific blocks with modern equipment, they do not carry the same township and pension obligations, and they are less exposed to the wage settlements that set Coal India's cost base. On the other side, Coal India has reserves that its competitors can only dream of, an established rail and road evacuation network, and the ability to honour long term supply agreements that most new miners cannot yet match.[1]
Imported coal is the third competitor and the one that matters most when it comes to price. When international thermal coal is cheap and the rupee is strong, coastal power plants find it cheaper to import than to move domestic coal over a thousand kilometres by rail. Coal India's answer has been to hold prices and improve despatch, which is why railway capacity appears in almost every discussion of its competitive position.[1]
Environment and green initiatives
Coal mining leaves a visible mark, and Coal India's environmental work is largely about containing it. The company planted 1.57 million saplings during 2014-15, reports that it has planted around 82 million trees over about 33,700 hectares, and runs mine closure plans that reshape overburden dumps into terraces and plantations. Reclaimed land is used for solar plants, farming and, in some cases, community facilities.[1]
Water and air management at the mines is regulated by the central and state pollution control boards, and the company's large open cast mines are required to use covered transport, water sprinklers and washeries to cut dust. Underground mining, which disturbs less of the surface, has been encouraged partly for that reason, though it is more expensive per tonne and now accounts for a small share of output.[1]
The company is also part of the debate about the future of coal. Its pumped storage programme with NHPC, the solar capacity built on reclaimed land and the coal gasification ventures are all attempts to build businesses that survive a decline in coal demand. None of them is yet large enough to replace the income from coal, and the company says so in its own reports.[1][6]
Emissions are the harder question. Research published in the Guardian in 2019 identified twenty firms, including Coal India, as the source of a third of global carbon emissions, and later estimates attributed about 1,513 million tonnes of carbon dioxide to the company's coal in 2024, roughly 3.92 per cent of the world total. That figure measures the coal the company sells rather than its own operations, and it is the number campaigners raise whenever the company plans to expand.[5][1]
Controversies and criticism
The most documented criticism concerns environmental clearances. In September 2011 the Comptroller and Auditor General reported that Coal India was operating 239 mines in seven coal producing subsidiaries, existing before 1994, without environmental clearance, including 48 open cast, 170 underground and 21 combined mines, and that ten of the sample mines had expanded capacity without clearances. The company replied that applications had been submitted to the Ministry of Environment and Forests.[1]
Mining near protected areas is the second front. Several Indian coal mines sit close to or beneath tiger reserves, and environmental organisations, including Greenpeace, have opposed mining in those areas on the ground that the disturbance to wildlife is permanent. The company's argument is that much of the mining around forest land is underground and does not disturb the surface, and that coal supplies about half of India's energy requirement.[1]
Safety is the third. Coal India reported its lowest figures for the period 2010 to 2012, with an average of 66 deaths and 251 serious accidents a year, and treats the fall as evidence that safety practice is improving. Critics argue that the safety record in most mines remains inadequate and that many accidents and deaths are not recorded and so never appear in official figures. Underground mining in particular remains dangerous, and roof falls are the most common cause of fatal accidents.[1]
The company's continued trade in Russian coking coal after the invasion of Ukraine has drawn criticism as well. Indian buyers, Coal India among them, increased imports of Russian coal by about 53 per cent in the first eight months of 2024, to about 5.2 million tonnes, at a time when other large buyers had withdrawn. The defence offered by Indian buyers is that the coal is cheaper and that India does not follow the sanctions regime.[1]
On land and displacement the criticism is quieter but constant. Acquiring land for new mines or expansions displaces farming families, and the promise of a job in lieu of land is a long standing compensation practice that the company has had to formalise, including at large open cast projects in the western coalfields. Disputes over compensation and rehabilitation delay projects and generate local opposition that mining companies elsewhere have also had to manage.[1]
Reading the numbers
Coal India's accounts are simpler than those of most large Indian companies, and four numbers carry the meaning. The first is production in million tonnes, because the company earns on volume and because a shortfall against the power sector's requirement is immediately a national issue. The second is offtake, the coal actually despatched, which is production minus what is stuck at the pithead. The third is the notified price of coal, fixed by grade, which is the main reason the profit margin is high. The fourth is the wage bill, which moves in steps every three or four years and is the largest single cost.[1]
For the year ended March 2025 revenue was about 1,43,369 crore rupees and net profit about 35,302 crore rupees, with a workforce of 220,272 and equity of about 99,951 crore rupees. A reader comparing the company with a private miner should keep in mind that its balance sheet carries the townships, hospitals and land it acquired over fifty years, and that its dividend, not its growth, is what most institutional investors hold it for.[1]
The long term question in the accounts is what happens to coal demand. India has committed to large renewable capacity additions, but its coal consumption has continued to rise because electricity demand is growing faster than the new capacity can replace the old. Coal India's own diversification spending is an admission that the plateau exists, even if nobody is yet certain which year it begins.[1][6]
