The Oil and Natural Gas Commission (ONGC) discovered an oilfield in the Gulf of Khambhat in the early 1970s, called the Mumbai High Field.

[2] Among the Coast Guard's charter of duties was the safety and protection of artificial islands and offshore terminals.

The ODAG was to be headed by a Rear Admiral designated Flag Officer Defence Advisory Group (FODAG).

[5] The ODAG is the nodal agency for all interaction with ONGC and other oil exploration and production companies regarding the defence of offshore installations within the Maritime zones of India.

[5] The FODAG comes under the administrative control of the Flag Officer Commanding-in-Chief Western Naval Command.