many submarines are aged and in a depleted condition as they were procured more than a quarter century ago. Navy is even short of sufficient funds for regular upkeep and necessary maintenance of many occasions.Around 60 ships and submarines along with 75 aircraft took part in this exercise, which saw participation of units from Air Force and Coast Guard.he exercise also saw the maiden participation by the newly acquired P 8I Long Range Maritime Patrol aircraft and the nuclear submarine, Chakra.