Registered Office
Registered Office : Plot No. 5A- 5B, Nelson Mandela Road, Deendayal Urja Bhawan,Vasant Kunj,, New Delhi, Delhi - 110070
Tel: Tel: 011-26754073, 26754085,
Email: secretariat@ongc.co.in,
Website: https://ongcindia.com,
Fax: Fax: 011-26129081