INS Darshak (J21) is a hydrographic survey ship in the Indian Navy, under the Eastern Naval Command.
Garden Reach Shipbuilders & Engineers Ltd, abbreviated as GRSE, is one of India's leading shipyards, located in Kolkata. It builds and repairs commercial and naval vessels. GRSE also builds export ships.
Kora-class corvettes are guided missile corvettes, in active service with the Indian Navy and the National Coast Guard of Mauritius. Four vessels were built at Garden Reach Shipbuilders and Engineers (GRSE) and outfitted at Mazagon Dock Limited (MDL).
The Car Nicobar class of high-speed offshore patrol vessels are built by Garden Reach Shipbuilders and Engineers (GRSE) for the Indian Navy. The vessels are designed as a cost-effective platform for patrol, anti-piracy and rescue operations in India's exclusive economic zone. In 2023, one of the ships, INS Tarmugli, was donated to the Maldivian Coast Guard.
INS Jamuna (J16) is a hydrographic survey ship in the Indian Navy, under the Southern Naval Command. Jamuna is equipped with a helicopter, a Bofors 40 mm gun, four survey motor boats, and two small boats. The ship has the distinction of being associated with relief work in the wake of the Gujarat earthquake, Tsunami 2004, as well as Operation Vijay during the Kargil war. Jamuna was also awarded a Mention in Dispatches.
The Makar-class survey catamarans are a series of six 500 ton steel hull/aluminium superstructure Hydrographic Survey Catamarans being built by Alcock Ashdown (Gujarat) Ltd at its Bhavnagar shipyard for the Indian Navy. The ships are designed by an Australian naval architecture firm Sea Transport Solutions, which is based on Queensland's Gold Coast. The deal was canceled due to the extensive delays as the Navy was not satisfied with the timeline and a fresh award for construction of another class of survey vessels to the GRSE has also been undertaken.
INS Kiltan (P30) is an anti-submarine warfare corvette of the Indian Navy built under Project 28. It is the third of four Kamorta-class corvettes. The ship was built by the Garden Reach Shipbuilders and Engineers (GRSE), Kolkata, launched on 26 March 2013, and commissioned on 16 October 2017. Kiltan represents a leap forward in the Navy's attempts at localisation with as much as 90% of its content drawn from India itself.
The Anti-Submarine Warfare Shallow Water Craft (ASW-SWC) corvettes, are a class of anti-submarine warfare (ASW) vessels currently being built for the Indian Navy, by Cochin Shipyard (CSL) and Garden Reach Shipbuilders & Engineers (GRSE). They were conceived as a replacement to the ageing Abhay-class corvettes of the Indian Navy, and are designed to undertake ASW duties – including subsurface surveillance in littoral waters, search-and-attack unit (SAU) missions and coordinated anti-submarine warfare operations with naval aircraft. They were also designed to provide secondary duties – including defense against intruding aircraft, minelaying and search-and-rescue (SAR).
The Indian Navy has been focusing on developing indigenous platforms, systems, sensors and weapons as part of the nation's modernisation and expansion of its maritime forces. As of November 2023, the Indian Navy has 67 vessels of various types under construction including destroyers, frigates, corvettes, conventional-powered and nuclear-powered submarines and various other ships. It plans to build up to a total of 200 vessels and 500 aircraft by 2050. According to Chief of Naval Staff's statement in December 2020, India has transformed from a buyer's navy to a builder's navy.
The Visakhapatnam-class destroyers, also classified as the P-15 Bravo class, or simply P-15B, is a class of guided-missile destroyers currently being built for the Indian Navy. The Visakhapatnam class is an upgraded derivative of its predecessor, the Kolkata class, with improved features of stealth, automation and ordnance.
INS Sarvekshak (J22) is a hydrographic survey ship in the Indian Navy, under the Southern Naval Command. Apart from a helicopter and Bofors 40 mm gun, the ship is also equipped with four survey motor boats, two small boats. The ship was awarded the runner-up trophy in the 2015 Innovation Trophy awards given out on Navy Day as an operational unit by Prime Minister Narendra Modi. The award was given for developing an innovative solution for tidal measurement during hydrographic surveys by use of land based terrain mapping equipment and floating buoys mounted with prisms. The award was accepted by Captain Rajesh Bargoti, the commanding officer of INS Sarvekshak.
INS Sandhayak (J18) was the lead ship of the Sandhayak class of survey ships. The ship operates as a hydrographic survey ship in the Indian Navy, under the Eastern Naval Command. Apart from a helicopter and Bofors 40 mm gun for self defence, the ship is also equipped with four survey motor boats, two small boats. The ship can also analyse the level of pollution, sea level at various places, sea bed and marine wealth. Sandhayak is capable of conducting shallow coastal and deep oceanic hydrographic survey and collect oceanographic and geophysical data. The ship was decommissioned on 4 June 2021 after 40 years in service.
INS Nirupak (J20) was a Sandhayak-class hydrographic survey ship in the Indian Navy. The ship was built by Garden Reach Shipbuilders & Engineers and commissioned into the Indian navy at Visakhapatnam naval base in 1985 under Eastern Naval Command.
INS Investigator (J15) is the fourth ship in the Sandhayak class, and operates as a hydrographic survey ship in the Indian Navy's Southern Naval Command. Investigator is equipped to prepare marine charts and electronic maps for the Electronic Chart Display and Information System (ECDIS). It can provide humanitarian aid and disaster-management support, and can be quickly converted into a hospital ship; the ship is equipped with an operating theater and associated equipment to deal with medical emergencies at sea.
INS Nirdeshak (J19) was the sixth ship of the Sandhayak class of the Indian Navy. The ship operated as a hydrographic survey ship in the Indian Navy, under the Eastern Naval Command. Nirdeshak was equipped to prepare a variety of marine charts and maps for ECDIS system. The ship's secondary role was to conduct humanitarian aid and disaster management operations, wherein the ship could be converted into a hospital ship. The ship was also equipped with an operating theater and associated equipment needed to attend to medical emergencies at sea.
INS Sutlej (J17) is a hydrographic survey ship of the Sandhayak class in the Indian Navy, under the Southern Naval Command. Like other ships of the same class, this ship is also equipped with an Operating Theater and associated equipment needed to attend to medical emergencies at sea.
The Sandhayak-class survey vessels are a series of four survey vessels being built by Garden Reach Shipbuilders and Engineers (GRSE), Kolkata for the Indian Navy. The first vessel was commissioned in 2021. The primary role of the vessels would be to conduct coastal and deep-water hydro-graphic survey of ports, navigational channels, Economic Exclusive Zones and collection of oceanographic data for defence. Their secondary role would be to perform search & rescue, ocean research and function as hospital ships for casualties.
INS Sandhayak is the lead ship of her class of survey ships. It is a hydrographic survey ship built by GRSE for the Indian Navy.
INS Nirdeshak is the second ship of its class of survey ships. It is a hydrographic survey ship built by GRSE for the Indian Navy.
Sandhayak at sea.
Nirdeshak during a survey mission.
Investigator at sea.
Survey tasking being undertaken by Southern Naval Command ships Jamuna and Sarvekshak on World Hydrography Day 2014.
Sarvekshak en-route to Mauritius
India 
