India's top 20 companies

From automobiles, cement, infrastructure to oil and gas and banking, Indian companies have established themselves as one of the most successful in the world.

India's oil PSUs have emerged as the biggest enterprises in India in terms of revenues, profits and net assets.

Here's a list of the top 20 companies from The Economic Times survey of India's top 500 companies.

Indian Oil Corporation (Rank 1)

From a net worth of just Rs 45.18 crore (Rs 451.8 million) and sales of 1.38 million tonnes valued at Rs 78 crore (Rs 780 million) in 1965, Indian Oil Corp has since grown over 3,000 times with a sales turnover of Rs 2,57,559.91 crore (Rs 2.57 trillion) today.

Its business spans across the entire hydrocarbon value chain from refining, pipeline transportation and marketing of petroleum products to exploration and production of crude oil & gas, marketing of natural gas, and petrochemicals.

Established in 1959, it features in the Fortune 'Global 500' listing, ranked at the 125th position in the year 2010.

Turnover: Rs 2,57,559.91 cr (Rs 2.57 trillion)
Profit: Rs 10,713.19 cr (Rs 107.13 billion)
M-cap: Rs 1,04,335.37 cr (Rs 1.04 trillion)

Revenues, net profit are of FY10.

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One of India's largest private sector enterprises, Reliance is also a Fortune Global 500 company.

The group's activities span exploration and production of oil and gas, petroleum refining and marketing, petrochemicals (polyester, fibre intermediates, plastics and chemicals), textiles, retail and special economic zones.

Turnover: Rs 2,14,532 cr (Rs 2145.32 billion)
Profit: Rs 15,898 cr (Rs 158.98 billion)
M-cap: Rs 3,22, 991 cr (Rs 3.22 trillion)

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Headquartered in Mumbai, the State Bank of India is the biggest bank in India. It is the largest state-owned banking and financial services company in India, in terms of revenues, profits, assets, market capitalisation.

The bank has won the prestigious Asian Banker Achievement Award for being the strongest bank in Asia Pacific region. It is also the oldest commercial bank in the Indian subcontinent.

Turnover: Rs 1,33,851 cr (Rs 1338.51 billion)
Profit: Rs 11,733 cr  (Rs 117.33 billion)
M-cap: Rs 1,92,994 cr (Rs 1.92 trillion)

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Bharat Petroleum Corporation Ltd is one of the largest state-owned oil and gas companies in India.

A Fortune Global 500 company, it deals with retailing of petroleum products. One of the pioneers in Indian petroleum industry, it has to its credit initiatives such as Pure for Sure campaign, petro card, fleet card etc. BPCL is often referred to as an 'MNC in PSU garb'

Turnover: Rs 1,26,181.92 cr (Rs 1.26 trillion)
Profit: Rs 1,632.36 cr (Rs 16.32 billion)
M-cap: Rs 27,885.41 cr (Rs 278.85 billion)

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Hindustan Petroleum Corporation Ltd is one of the major integrated oil refining and marketing companies in India.

A mega PSU with Navaratna status, HPCL accounts for about 20 per cent of the market share and about 10 per cent of India's refining capacity with two coastal refineries.

It also owns and operates the largest lube refinery in India producing Lube Base Oils of international standards.

Turnover: Rs 1,13,304.34 cr (Rs 1.13 trillion)
Profit: Rs 1,475.29 cr (Rs 14.75 trillion)
M-cap: Rs 18,031.75 cr (Rs 180.31 billion)

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Oil and Natural Gas Corporation, a Fortune Global 500 company contributes 77 per cent of India's crude oil production and 81 per cent of India's natural gas production. It is one of the highest profit making corporations in India.

India's Oil and Natural Gas Corporation has beaten Chinese rival Cnooc to become Asia's top oil and gas exploration and production company. It is involved in exploring for and exploiting hydrocarbons in 26 sedimentary basins of India.

It produces about 30 per cent of India's crude oil with more than 11,000 kilometres of pipelines in India.

Turnover: Rs 1,07,065.85 cr (Rs 1.07 trillion)
Profit: Rs 19,403.53 cr (Rs 194.03 billion)
M-cap: Rs 2,97,257.10 cr (Rs 2.97 trillion)

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The Tata Steel Group is the tenth largest steel producer in the world with an annual crude steel capacity of 31 million tonnes and employee strength of above 81,000 across five continents.

Tata Steel is also India's second-largest and second-most profitable company in private sector. A Fortune 500 company, it was formerly called Tata Iron and Steel Company.

Turnover: Rs 1,03,705.83 cr (Rs 1.03 trillion)
M-cap: Rs 54,362.06 cr (Rs 543.62 billion)
Loss: Rs 2,009.22 cr ( Rs 20.09 billion)

Tata Motors is one of India's largest automobile companies. A leading player, in commercial and passenger vehicles, its first vehicle rolled out in 1954. Tata Motors has produced and sold over 4 million vehicles in India.

In 2010, Tata Motors surpassed Reliance to win the coveted title of 'India's most valuable brand' in survey conducted by The Economic Times.

Tata Motors has manufacturing and assembly plants in Jamshedpur, Pantnagar, Lucknow, Ahmedabad, Sanand and Pune in India, and in Argentina, South Africa and Thailand. The world's cheapest car, Nano and one of the world's most expensive vehicles (JLR, Land Rover) also belong to the Tata Motors family.

Turnover: Rs 94,481.34 cr (Rs 944.81 billion
Profit: Rs 2,571.06 cr (Rs 25.71 billion)
M-cap: Rs 59,915 cr (Rs 599.15 billion)

Hindalco Industries, the metals flagship company of the Aditya Birla Group is the world's largest aluminium rolling company and one of the biggest producers of primary aluminium in Asia.

Its copper smelter is the world's largest custom smelter at a single location.The company's acquisition of Novelis Inc in 2007 catapulted its position among the top five aluminium majors worldwide and the largest vertically integrated aluminium company in India.

Turnover: Rs 61,044.82 cr (Rs 610.44 billion)
Profit: Rs 3,925.47 cr (Rs 39.25 billion)
M-cap: Rs 35,689.22 cr (Rs 356.89 billion)

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ICICI Bank is India's second-largest bank with total assets of Rs 3,634 billion ($ 81 billion) as on March 31, 2010.

The Bank has a network of 2,044 branches and about 5,546 ATMs in India and presence in 18 countries. ICICI Bank offers a wide range of banking products and financial services to corporate and retail customers.

Turnover: Rs 59,599.77 cr (Rs 595.99 billion)
Profit: Rs 4,670.29 cr (Rs 46.70 billion)
M-cap: Rs 12,3216.47 cr (Rs 1232.16 billion)

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NTPC, India's largest power company, was set up in 1975 to accelerate power development in India. It is a significant player in the entire value chain of power generation business.

NTPC was ranked 317th in the '2009, Forbes Global 2000' ranking of the world's biggest companies.

With a current generating capacity of 32,194 MW, NTPC has embarked on plans to become a 75,000 MW company by 2017.

Turnover: Rs 51,203.35 cr (Rs 512.03 billion)
Profit: Rs 8,837.65 cr (Rs 88.37 billion)
M-cap: Rs 16,9726.91 cr (Rs 1697.26 trillion)

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Larsen & Toubro is a multinational conglomerate with an international presence. L& T's engineering and construction track record consists of implementation of turnkey projects in major core and infrastructure sectors of the Indian industry. L&T is known as one of the top five fabrication companies in the world.

Turnover: Rs 46,789.37 cr (Rs 467.89 billion)
Profit: Rs 5,450.74 cr (Rs 54.50 billion)
M-cap: Rs 1,17,525.94 cr (Rs 1.17 trillion)

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Steel Authority of India Limited (SAIL) is the leading steel-making company in India.

It is a fully integrated iron and steel maker, producing both basic and special steels for domestic construction, engineering, power, railway, automotive and defence industries and for sale in export markets.

Ranked amongst the top ten public sector companies in India in terms of turnover, SAIL manufactures and sells a broad range of steel products

Turnover: Rs 43,291.45 cr (Rs 432.91 billion)
Profit: Rs 6,790.77 cr (Rs 67.90 billion)
M-cap: Rs 82,964.00 cr (Rs 829.64 billion)

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Bharti Airtel is a leading global telecommunications company with operations in 19 countries across Asia and Africa.

The company offers mobile voice and data services, fixed line, high speed broadband, IPTV, DTH, turnkey telecom solutions for enterprises and national and international long distance services to carriers.

Bharti Airtel has been ranked among the six best performing technology companies in the world by Business Week. It has over 191 million customers across its operations at the end of September 2010.

Turnover: Rs 41,951.93 cr (Rs 419.51 billion)
Profit: Rs 9,163.13 cr (Rs 91.63 billion)
M-cap: Rs 1,34,881.68 cr (Rs 1.34 trillion)

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A part of the Essar group, Essar Oil is an Indian integrated oil and gas company. It operates a major refinery in Gujarat, which made it the second largest non-state refiner in India in 2009.

Turnover: Rs 36,720 cr (Rs 367. 20 billion)
Profit: Rs 32 cr (Rs 320 million)
M-cap: Rs 18,554.93 cr (Rs 185.54 billion)

BHEL is the largest engineering and manufacturing enterprise in India in the energy-related/infrastructure sector, today.

A highly successful PSU, it has been earning profits continuously since 1971-72 and paying dividends since 1976-77.

BHEL manufactures over 180 products under 30 major product groups.

Turnover: Rs 34,703.28 cr (Rs 347.03 trillion)
Profit: Rs 4,326.92 cr (Rs 43.26 billion)
M-cap: Rs 1,20,237.65 cr(Rs 1.20 trillion)

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MRPL, a subsidiary of ONGC is the only refinery in India to have two Hydrocrackers producing premium diesel (High Cetane). It is also the only refinery in India to have 2 CCRs producing unleaded petrol of high octane.

MRPL has high standards in refining and environment protection matched by its commitments to society.

Turnover: Rs 32,568.08 cr (Rs 325.68 billion)
Profit: Rs 1,112.38 cr (Rs 11.12 billion)
M-cap: Rs 13,709.77 cr (Rs 137.09 billion)

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Mahindra & Mahindra, a part of the Mahindra Group was set up in 1945 in Ludhiana. Mahindra Group's automotive sector manufactures light commercial vehicles, including three-wheelers.

It is the market leader in utility vehicles in India since inception, and currently accounts for about half of India's market for utility vehicles. Today, the group has a large portfolio catering to rural and semi-urban customers, defense requirements and luxurious urban utility vehicles.

M&M also has controlling stake in Reva Electric Car Company and has been selected as the preferred bidder for the acquisition of South Korea's SsangYong Motor Company.

Turnover: Rs 31,957.83 cr (Rs 319.57 billion)
Profit: Rs 2,478.56 cr (Rs 24.78 billion)
M-cap: Rs 38,671.90 cr (Rs 386.71 billion)

Founded in 1981, Maruti Suzuki India is a subsidiary of Suzuki Motor Corporation of Japan. Maruti Suzuki is India's largest passenger car company, accounting for over 50 per cent of the domestic car market.

It is also the first company in India to mass-produce and sell more than a million cars.

The company offers 14 brands and over 150 variants ranging from Maruti 800 to the stylish Ritz. Other cars include Omni and Eeco, Alto, A-star, WagonR, Swift and Estilo, Gypsy, SUV - Grand Vitara, sedans - SX4 and Swift DZire.

Turnover: Rs 3,07,04.57 cr (Rs 3.07 trillion)
Profit: Rs 2,624.64 cr (Rs 26.24 billion)
M-cap: Rs 39,777.68 cr (Rs 397.77 billion)

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Tata Consultancy Services, India's largest software exporter offers IT services, business solutions and outsourcing services.

Turnover: Rs 30,300.99 cr (Rs 303 billion)
Profit: Rs 7,000.64 cr (Rs 70 billion)
M-cap: Rs 1,75,750.50 (Rs 1.75 trillion)