Shachi-class offshore patrol vessel

The Shachi class (Project 21) was a class of naval offshore patrol vessels supposed to be built by Reliance Defence and Engineering (formerly known as Pipavav Defence and Offshore Engineering Company Limited) at its shipyard in Indian state of Gujarat. The project was scrapped by Ministry of Defense, India after an inordinate delay of nine years. The class was succeeded in its role by the NGOPV programme, which resulted in a new Shachi class.