GAIL (India) Ltd.

 website :http://www.gail.finalnic.in/site/index.htm
GAIL (India) Limited is the largest state-owned natural gas processing and distribution company headquartered in New Delhi, India. It has following business segments: Natural Gas, Liquid Hydrocarbon, Liquefied petroleum gas Transmission, Petrochemical, City Gas Distribution, Exploration and Production, GAILTEL and Electricity Generation. GAIL has been conferred with the MaharatnaMaharatna status on 1 Feb 2013, by the Government of India. Currently only six other Public Sector Enterprises (PSEs) enjoy this coveted status amongst all central CPSEs.
GAIL (India) Limited was incorporated in August 1984 as a Central Public Sector Undertaking (PSU) under the Ministry of Petroleum & Natural Gas (MoP&NG). The company was previously known as Gas Authority of India Limited. It is India's principal Gas transmission and marketing company. The company was initially given the responsibility of construction, operation & maintenance of the Hazira – Vijaypur – Jagdishpur (HVJ) pipeline Project.

Steel Authority of India (SAIL) Ltd.

 Website :http://www.sail.co.in/
Steel Authority of India Limited (SAIL) (Hindi: स्टील अथॉरिटी ऑफ इण्डियालिमिटेड(Steel Authority of India Limited)) is one of the largest state-owned steel-making company based in New Delhi, India and one of the top steel makers in World. With a turnover of 486.81 billion (US$7.4 billion), the company is among the top five highest profit earning corporates of the country (source?). It is a public sector undertaking which trades publicly in the market is largely owned by Government of India and acts like an operating company. Incorporated on 24 January 1973, SAIL has more than 100,000 employees. During 2010–11, the manpower of SAIL reached a level of 110794 (as on 31 March 2011) from 116950 (as on 1.4.2010) The company's current chairman is C.S Verma. With an annual production of 13.5 million metric tons, SAIL is the 24th largest steel producer in the world.

Tata Consultancy Services Ltd.

Website :http://www.tcs.com/Pages/default.aspx


Tata Consultancy Services Limited (TCS) is an Indian multinational information technology (IT) services, business solutions and consulting company headquartered in Mumbai, Maharashtra.TCS operates in 46 countries and has 199 branches across the world. It is a subsidiary of the Tata Group and is listed on the Bombay Stock Exchange and the National Stock Exchange of India. Its main function is to provide IT services. TCS is the largest Indian company by market capitalization and is the largest India-based IT services company by 2013 revenues.TCS has been recognized by Forbes as one of the World's Most Innovative Companies. TCS ranked 40th overall, making it not only the highest ranked IT services company to make the list, but also the top Indian company.
Tata Consultancy Services Ltd (TCS) was founded in 1968 as a division of Tata Sons Limited by J.R.D Tata. Its early contracts included providing punched card services to sister company TISCO (now Tata Steel), working on an Inter-Branch Reconciliation System for the Central Bank of India,and providing bureau services to Unit Trust of India.

Bharat Heavy Electricals Ltd.

Website :http://www.bhel.com/home.php 
Bharat Heavy Electricals Limited (BHEL) is an Indian state-owned integrated power plant equipment manufacturer and operates as an engineering and manufacturing company based in New Delhi, India. BHEL was established in 1964, ushering in the indigenous Heavy Electrical Equipment industry in India. The company has been earning profits continuously since 1971-72 and paying dividends since 1976-77. It is one of the only 7 mega Public Sector Undertakings (PSUs) of India clubbed under the esteemed "Maharatna" status, which it received in February 2013.

Mangalore Refinery And Petrochemicals Ltd.

Website : http://www.mrpl.co.in/ 
Mangalore Refinery and Petrochemicals Limited (MRPL), is an oil refinery at Mangalore and is a subsidiary of ONGC, set up in 1993. The refinery is located at Katipalla, north from centre of Mangalore city. The refinery was established after displacing five villages of Bala, Kalavar, Kuthetoor, Katipalla, and Adyapadi.
The refinery has a versatile design with high flexibility to process crudes of various API gravity and with high degree of automation. MRPL has a design capacity to process 9.69 million metric tonnes per annum and 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 two CCRs producing unleaded petrol of high octane. Currently, the refinery is processing about 12.5 million tonnes of crude per year and had a turnover of US$8 billion during last year.