The joint exercise, named 'Sahyog-Kaijin-XV', saw ships, choppers and personnel from either sides engage in a variety of activities witnessed by the Director General of Indian Coast Guard Vice Admiral H C S Bisht and Vice Commandant of Japan Coast Guard Vice Admiral Hideyo Hanamizu.
Speaking to reporters, Bisht said the joint exercise, part of the ongoing cooperative arrangements between the two sides for the last 15 years, was being done to "gauge inter-operability".
While the threat of piracy, especially from Somalian pirates, had reduced "we cannot say with certainty that threats don't exist", and therefore the need for such initiatives arose where one side can learn from the other, Bisht said, adding one has to "keep the guard up".
Hanamizu expressed satisfaction over the exercise and hailed the expanding relationship between India and Japan, especially between the Coast Guards of the two countries.
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JCG Ship Echigo participated in the joint exercise and the two Coast Guards did simulated situations of hijack of a merchant vessel by 'pirates' and its subsequent rescue, cross deck landing of helicopters, search and rescue demonstration and external fire-fighting.
(REOPENS MDS4)
To a query on the fishermen issue, Bisht said "a large" number of them were aware of the International Maritime Boundary Line (IMBL) with the neighbours, including Pakistan and Sri Lanka since most of them carried Global Positioning System (GPS) devices.
This has resulted in fishermen becoming our "eyes and ears" where in one instance a fishermen in Goa had informed about an unidentified boat.
However, there was nothing suspicious about it since it hailed from Gujarat and only did not belong to Goa, he said, adding this was a positive result of the community interaction programme.
On the security front, besides other agencies, the Coast Guard was maintaining round-the-clock vigil with a number of boats and aircraft doing the job in different coastal areas, he said.