Reliance Naval & Engineering Limited specializes in defence and commercial shipbuilding, ship repair, and offshore engineering activities. It operates the largest dry dock in India, located at Pipavav, Gujarat.

The company has established itself as a pioneer by holding a license and contract to build warships, marking it as the first private sector entity in India to achieve this feat.

A notable strategic move was the company's acquisition by Reliance Defence Systems Pvt Ltd and Reliance Infrastructure Ltd, which significantly shifted management control and direction.

Reliance Naval was certified by the U.S. Navy in 2020 to service vessels from its Seventh Fleet, highlighting its international recognition and capability.

The company features integrated, state-of-the-art production facilities at its Pipavav shipyard, reinforcing its stature in the engineering infrastructure space in India.