Modi said Kudankulum 1, an Indo-Russian project, was an important addition to the continuing efforts to scale up production of clean energy in India.
Big ticket defence deals including purchase of missile systems, frigates and joint production of helicopters were sealed on Saturday.
The two countries also asked all nations to stop cross-border movement of terrorists and asserted that a decisive collective response from the international community without 'double standards and selectivity' was required to combat the threat of terrorism.