New Delhi: The name Arihant derives from two words – Ari meaning enemy and Hanth meaning destroy.
It is India's first indigenously built nuclear submarine.It cost cost $2.9bn to India.
It was jointly developed by the Indian Navy, Bhabha Atomic Research Centre (BARC) and Defence Research and Development Organisation (DRDO) at the naval dockyard in Visakhapatnam with the assistance of Russian designers.
Arihant has been developed as part of the military modernisation programme undertaken by India.
