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Oil & Natural Gas Corporation Limited

(A Goverment of India Enterprise, Maharatna, Ministry of Petroleum & Natural Gas)

Headquarters: Tel Bhawan, Dehradun - 248003
Phone: +91 135 2757121, 2751011, 2751012 Fax: +91 135 2755298

Registered Office: 4th Floor, A-B, Block, Pandit Deendayal Upadhyaya Urja Bhawan, 5A, Nelson Mandela Marg, Vasant Kunj, New Delhi - 110070
Phone :26752021,26122148 Fax :26129091

Website: http://www.ongcindia.com E-mail: ongcdelhicc@ongc.co.in