The sinking of the vessel has also resulted in the Navy to seek upgrades and life enhancement of its four Kilo class Russian and two German HDW class submarines, Navy sources said here.
The file regarding the contract for salvaging the vessel has been sent to the Defence Ministry and it is expected to be sanctioned by it very soon, they said.
The foreign vendor has sought 45 days to bring his heavy instruments to the accident site and another three months for salvaging the vessel and putting it in a dry-dock, they said.
Soon after the mishap, the Navy chief had stated that the inquiry would be completed in four weeks but later it was realised that it would not be possible to do so without bringing it out of water.
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They said the sinking of the Sindhurakshak has not resulted in putting extra burden on the remaining vessels.
The force was also close to finalising the contract for procuring deep sea rescue vessels, which will be useful in rescuing submariners in case of a mishap in deep sea to evacuate them.
A submarine will be showcased in the Navy tableau at this year's Republic Day parade.