"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.
The submarines, designed by French naval defence and energy company DCNS, are being built by Mazagon Dock Limited in Mumbai.