The legal dispute is, however, not over, as Vedanta has appealed against the order before a division bench of the High. New Delhi, Nov 15 State-run Oil and Natural Gas Corporation (ONGC) has taken over operations and control of the disputed Cambay offshore block from Veda.. ONGC has taken control of the Cambay offshore block from Vedanta following a Delhi High Court ruling. Vedanta booked a Rs 379 cr impairment charge.