Raksha Mantri launches Y- 3023 Dunagiri, Project 17A frigate at GRSE Ltd, Kolkata Raksha Mantri Shri Rajnath Singh launched Y- 3023 Dunagiri, Project 17A frigate built by Garden Reach Shipbuilders Limited (GRSE) in Kolkata on July 15, 2022. Admiral R Hari Kumar, Chief of Naval Staff, and other senior officers from Indian Navy and Ministry of Defence were amongst the dignitaries who attended the ceremony. P17A Frigates are follow-on class of the P17 (Shivalik Class) Frigates with improved stealth features, advanced weapons and sensors and platform management systems. Seven P17A Frigates are under various stages of construction at Mazagaon Dock