Swan Defence and Heavy Industries Limited formerly known as Reliance Naval and Engineering Limited, Reliance Defence & Engineering Limited and prior to that as Pipavav Shipyard Limited and Pipavav Defence & Offshore Engineering Company Limited is an Indian shipbuilding and heavy industry company. The shipyard is located near the village of Pipavav in Gujarat, at a distance of 90 km South of Amreli, 15 km South of Rajula and 140 km South West of Bhavnagar. The company was the first private sector company in India to obtain a license and contract to build warships and owns the largest shipyard in India. Wikipedia