During the exercise, both the Eastern and the Western fleet ships and assets are taking part in a networked environment after the launch of a surveillance satellite of the Navy, Naval officials said here.
"Navy Chief Admiral D K Joshi along with Eastern naval Commander Vice Admiral Anil Chopra embarked the combined fleets at sea off the East coast today," a Navy release said.
Amongst the large number of participating units are the Aircraft Carrier INS Viraat and the nuclear submarine INS Chakra.
In the war drills, the Navy will carry out "missile, torpedo and gun-firing. This year's exercise will witness the maiden participation of the recently acquired P8I maritime reconnaissance aircraft, as also the Hawk fighter trainer aircraft."
The Navy said it will deploy its UAVs and Airborne Early Warning helicopter along with Air-to-Air refueller aircraft, Jaguar and SU-30 combat aircraft of Air Force.