Address Plot No. 5 A- 5 B,Nelson Mandela Road,Vasant Kunj,New Delhi,Delhi-110070
Phone 022-26754073 / 26754085 / 26750111 / 2629000
Email secretariat@ongc.co.in
Website www.ongcindia.com
Badjate Stock & Shares Pvt. Ltd. 201, Mangalam Arcade, Above Venus Book Centre, Dharampeth Extn. Nagpur - 440010 Maharashtra, India.