It was 30 nautical miles off the coast of Mumbai when it went missing. Four aircraft has also been dispatched for the search operation. The Coast Guard has fished out three bodies from the site.
The helicopter belongs to state-run company Pawan Hans, which operates a fleet of helicopters for off-shore operations, charter services and ferrying pilgrims to shrines in mountainous areas. However ATC lost contact with the chopper mimutes after it took off and no communication could be revived, reports news agency ANI. Thereafter, they were in touch with the rig air traffic controller for upto 9 kms, about 2 mins.
"We have deployed all our choppers, including ones from each of our naval bases, to search for the missing chopper", said senior ONGC official RK Mishra.
The ONGC has alerted the Indian Coast Guard in this regard. Meanwhile, a rescue operation to trace the remaining people is underway.