Cairn India
Former Indian oil and gas exploration and production company whose principal assets included the Rajasthan oil fields and the Ravva field.
Last updated August 31, 2026
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Overview
Cairn India was an Indian oil and gas exploration and production company headquartered in Gurgaon. Established in 2006 as the Indian operating vehicle of Cairn Energy, it became one of the country’s most prominent private-sector upstream energy businesses. Its activities covered exploration, appraisal, field development, crude-oil and natural-gas production, processing, and associated transportation infrastructure. The company’s defining asset base was the Rajasthan block in western India. Cairn’s exploration program in the area began before Cairn India was incorporated as a separate company: the Guda discovery was made in 1999, followed by Saraswati in 2001 and the major Mangala discovery in 2003. Further discoveries included Raageshwari, Bhagyam, Aishwariya, Kaameshwari, and GR-F. Cairn acquired full exploration interest in the block and became its operator in 2003. The Mangala field, discovered in January 2004, was described as India’s largest onshore oil discovery in more than two decades at the time. Together, the Mangala, Bhagyam, and Aishwariya fields formed the core of a large development program. Cairn India also operated or participated in assets outside Rajasthan. In Andhra Pradesh, it was involved in the Ravva oil and gas field in the Krishna-Godavari Basin with ONGC, Videocon, and Ravva Oil. In Gujarat’s Cambay Basin, the Lakshmi, Gauri, and CB-X fields supported production of gas and oil. The company additionally explored the Mannar Basin offshore Sri Lanka through Cairn Lanka, conducting seismic work and drilling exploration wells. The Rajasthan business required substantial midstream infrastructure because the crude was produced in an inland desert region far from major refining and export locations. Cairn India developed the Mangala Processing Terminal near Barmer and the Mangala Development Pipeline, a long, continuously heated and insulated crude-oil pipeline running from Rajasthan through Gujarat to Bhogat on the Arabian Sea coast. The system was designed to keep the waxy crude above its wax-appearance temperature during transport and to connect production with Indian and private-sector refineries. Cairn India was listed on India’s National Stock Exchange and Bombay Stock Exchange in 2007. In 2010, Vedanta Resources agreed to acquire Cairn Energy’s controlling interest, while also purchasing additional shares in the market. The transaction made Cairn India part of the Vedanta-controlled energy portfolio. Cairn India was ultimately merged with Vedanta Limited, and its shares were delisted from the NSE and BSE on 25 April 2017. The Cairn India corporate entity therefore no longer operates as an independent listed brand, although several of its former assets and operations continued under Vedanta’s ownership.
History
Cairn India’s history is rooted in Cairn’s exploration activity in western India during the late 1990s and early 2000s. The first Rajasthan discovery, Guda, was made in 1999, followed by the Saraswati discovery in 2001. The Mangala discovery in 2003 became the turning point for the company’s Indian business. Cairn acquired the entire exploration interest in the Rajasthan block in 2003 and assumed operatorship. Additional discoveries, including Raageshwari, Bhagyam, Aishwariya, Kaameshwari, and GR-F, established the block as a major hydrocarbon province. Cairn India was incorporated in 2006 as the Indian exploration and production company associated with Cairn Energy. It was listed on India’s National Stock Exchange and Bombay Stock Exchange in 2007. Its business was centered on finding and developing oil and gas resources, but the company also built processing and transportation facilities needed to commercialize difficult inland reserves. The Rajasthan development became the company’s most important undertaking. Mangala was followed by Bhagyam and Aishwariya, forming the principal MBA development area. Other Rajasthan fields, including Saraswati and Raageshwari, also entered production. The Mangala Processing Terminal near Barmer processed crude from the block, while the Mangala Development Pipeline carried heated crude across Rajasthan and Gujarat toward Bhogat on the coast. The pipeline used continuous heating and insulation because the crude could become difficult to transport at lower temperatures. It incorporated intermediate storage, pumping, inspection, and monitoring facilities and was connected to routes serving Indian refiners. Cairn India’s portfolio also included the Ravva field offshore Andhra Pradesh. The field was operated through a partnership involving Cairn India, ONGC, Videocon, and Ravva Oil. Its facilities included offshore platforms and an onshore terminal at Surasaniyanam for handling crude oil and natural gas. In Gujarat, the company operated interests in the CB/OS-2 block in the Cambay Basin, where the Lakshmi and Gauri fields produced gas and later oil, while the smaller CB-X field produced for a limited period. The company expanded its exploration footprint beyond India through Cairn Lanka, a wholly owned subsidiary, which received an exploration block in Sri Lanka’s Mannar Basin. Cairn Lanka acquired three-dimensional seismic data and began a three-well drilling campaign in 2011. The campaign established evidence of a working petroleum system, although at least one later exploration well encountered water-bearing sands and was plugged and abandoned. Cairn India became the subject of a major ownership change in 2010. Vedanta Resources agreed to buy Cairn Energy’s controlling stake, and Vedanta later acquired further shares in the open market, including a stake previously held by Petronas. Following regulatory and shareholder processes, Cairn India became part of the Vedanta-controlled energy business. The independent corporate structure ended when Cairn India was merged with Vedanta Limited. The company was delisted from the NSE and BSE on 25 April 2017. Its legacy is therefore associated with the discovery and development of Rajasthan’s major oil fields, the construction of specialized crude infrastructure, and the transfer of a significant Indian upstream portfolio into Vedanta.
- 2017
Merger into Vedanta Limited
[1]Cairn India was merged with Vedanta Limited and delisted from the NSE and BSE on 25 April.
- 2013
Aishwariya production and Rajasthan gas sales
[1]The Aishwariya field began oil production, while commercial gas sales commenced from the Rajasthan block through the Cairn-ONGC joint venture.
- 2011
Sri Lankan exploration drilling
[1]Cairn Lanka began a three-well exploration campaign in the Mannar Basin, the first successful exploration program in Sri Lanka in several decades.
- 2010
Mangala Development Pipeline begins commercial service
[1]Oil was introduced into the heated, insulated pipeline system linking Rajasthan production with refining and coastal infrastructure.
- 2010
Vedanta acquisition agreement
[1]Vedanta Resources agreed to acquire Cairn Energy’s controlling interest in Cairn India.
- 2007
Public listing
[1]Cairn India was listed on the National Stock Exchange and Bombay Stock Exchange.
- 2004
Mangala recognized as a major onshore discovery
[1]The Mangala field was discovered in January and became recognized as India’s largest onshore oil discovery in more than 20 years at the time.
- 2003
Mangala discovery and operatorship
[1]Cairn made the Mangala discovery, later the principal field in the Rajasthan development, and acquired full exploration interest while taking over operatorship of the block.
- 2001
Saraswati discovery
[1]The Saraswati field was discovered in Rajasthan, adding to Cairn’s emerging position in the block.
- 1999
Guda discovery in Rajasthan
[1]Cairn made its first reported discovery in Rajasthan at the Guda field, beginning the exploration sequence that later produced the region’s major oil developments.
Products and positioning
Indian private-sector upstream oil and gas company focused on exploration-led resource development, large-scale onshore production, and integrated crude transportation infrastructure.
Crude oil
Rajasthan crude oil
Crude oil produced from the Rajasthan block, principally from the Mangala, Bhagyam, Aishwariya, Saraswati, and Raageshwari fields. Production was gathered and processed at the Mangala Processing Terminal before being transported through the Mangala Development Pipeline to downstream customers and refining infrastructure.
Natural gas · 2013
Rajasthan natural gas
Natural gas produced from the Raageshwari Deep Gas field and as associated gas from Rajasthan oil operations. Commercial sales began in 2013 through the Cairn-ONGC joint venture, with gas also supporting energy requirements at the processing terminal and along the pipeline system.
Oil and gas production
Ravva oil and gas
Oil and natural gas produced from the Ravva field in the Krishna-Godavari Basin offshore Andhra Pradesh. The operation used offshore platforms and an onshore terminal at Surasaniyanam for processing, storage, and handling of hydrocarbons.
Oil and gas production · 2002
Cambay Basin hydrocarbons
Oil and gas from Cairn India’s interests in Gujarat’s CB/OS-2 block, including the Lakshmi and Gauri fields and the smaller CB-X field. The assets produced gas before also producing oil in the principal fields.
Controversies
2015
Cairn India clarifies reports of job cuts
After an exchange sought clarification about a report that Cairn India had cut 250 jobs, the company said the newspaper had speculated and that resource realignment could include human capital while maintaining performance and operations. The source does not establish that the reported cuts occurred.
Brand decisions
2017
Merger with Vedanta LimitedM&ABackground
Following Vedanta’s acquisition of control and the completion of the relevant approval process, the separate listed Cairn India structure was consolidated.
Action taken
Cairn India was merged into Vedanta Limited and its shares were delisted from the NSE and BSE on 25 April 2017.
Aftermath
Cairn India ceased to exist as an independent listed company, while its former assets continued within Vedanta’s operations.
2013
Start of commercial Rajasthan gas salesProduct launchBackground
Gas production from the Rajasthan block was being developed alongside oil production and was intended to supply the Mangala Processing Terminal and associated infrastructure.
Action taken
The Cairn-ONGC joint venture began commercial sale of gas from the Rajasthan block, initially at approximately five million standard cubic feet per day.
Aftermath
The gas stream added a second commercial hydrocarbon output to the Rajasthan development and supported local operating requirements.
2010
Transfer of Cairn India control to VedantaM&ABackground
Cairn Energy sought to sell its controlling interest in Cairn India, while Vedanta Resources was expanding its position in the Indian natural-resources sector.
Action taken
Vedanta Resources agreed to acquire 58.8% of Cairn India and later bought additional shares on the open market, including a stake from Petronas.
Aftermath
Cairn India became part of the Vedanta-controlled portfolio and was subsequently merged into Vedanta Limited.
Recent events
- 2017
Cairn India is delisted after merger with Vedanta Limited[1]
M&A · Leadership change
Cairn India’s shares were removed from the National Stock Exchange and Bombay Stock Exchange on 25 April 2017 after the company was merged into Vedanta Limited.
- 2011
Cairn India is ranked among the fastest-growing energy companies[1]
Other
The company was recognized in Platts’ global energy-company rankings as the world’s fastest-growing energy company for the year.
- 2010
Vedanta agrees to acquire a controlling interest in Cairn India[1]
M&A
Vedanta Resources reached an agreement to acquire a 58.8% interest in Cairn India from Cairn Energy for consideration reported at approximately US$8.67 billion. Vedanta subsequently acquired additional shares in the market while awaiting regulatory approval.
Sources4 sources
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