Simultaneously, the Navy has widened its search operations for the two missing crew members of the chopper.
The helicopter with seven people on-board, including five ONGC officers and two pilots, crashed off the Mumbai coast minutes after it took off for the state-owned company's oil installation in the Arabian sea yesterday.
A Navy spokesperson said today that the two Fast Interceptor Crafts, INS Tarasa and the frigate INS Teg were coordinating the search in the area along with Indian Coast Guard (ICG) Ships Samudra Prahari, Achook and Agrim.
The INS Makar (a twin hulled catamaran hydrography ship) from Karwar was also en route to area to augment search efforts, he said.
The ICGS Samrat also sailed out from Mumbai to join the search and rescue operations, he said.
Besides, ICG Dornier from Daman, IN Seaking 42 B from Shikra (helibase) and nine ONGC Vessels were also deployed for search in the area, he said.
The ONGC vessel TAG 15 undertaking side scan sonar operations has found some debris 600 yards from the wreckage position, the spokesperson said.
The diving team from Samudra Sevak vessel is preparing to undertake the search while the team from INS Teg is kept on standby, he said.
ONGC, Coast Guard and Navy pressed helicopters and speed boats as soon as the information of the chopper going missing was received at the Juhu helibase.
ONGC has key oil and gas fields off the Mumbai coast and Pawan Hans helicopters routinely ferry company employees and officers to the oil installations that are situated as far as 160 kilometres from the coastline.
The field in the offshore include Mumbai High, the nation's largest oil field and Bassein fields, the largest gas field.
The helicopter crash is not the first accident in ONGC's history. In August 2003, an Mi-172 helicopter crashed off the Mumbai coast killing 27 people and pilot on-board.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)