Sources said three tenders have been floated, with bids likely to be submitted this month.

“Technical and price bids should be submitted in August. We do not think ONGC would delay the seismic tenders as it wants to start acquiring 3D data after this year’s monsoon season,” one source said.

The first tender involves the acquisition and processing of 600 square kilometres of 3D seismic using ocean bottom nodes off India’s west coast.

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