Second Scorpene-class submarine ready for sea trials, first one to be inducted this year, says Arun Jaitley

File photo of Indian Navy's Scorpene submarine INS Kalvari being escorted by tugboats as it arrives at Mazagon Docks in Mumbai. Reuters[/caption]"Congratulations to MDL engineers as their efforts have moved the second Scorpene class submarine for surface sea trials," Jaitley tweeted.The first Scorpene-class submarine INS Kalvari has already undergone various trials and is expected to be inducted into the Indian Navy later this year.The defence minister said the Scorpene-class submarines will significantly enhance India's naval prowess."These Scorpene class submarines will not only add to our future naval power & strengthen defence but also make our ocean safe & secure," he said in another tweet.Six Scorpene-class submarines are being built under'Project 75' of the navy.The submarines, designed by French naval defence and energy company DCNS, are being built by Mazagon Dock Limited in Mumbai.