A day after first of the Scorpene class submarines 'Kalvari' was set afloat, its builder Mazgaon Dock (MDL) said the indigenously built asset will now undergo extensive sea trials before commissioning into the Navy late next year.

"The accomplishment of this milestone would initiate commencement of sea trials which would eventually lead to commissioning of the boat into the Indian Navy in September 2016," Rear Admiral R K Shrawat, chairman and managing director of MDL told reporters.