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{{short description|Series of four survey vessels for the Indian Navy}}
{{Use dmy dates|date=November 2018}}
{{Use Indian English|date=November 2018}}
{|{{Infobox ship begin|sclass=2
}} 
{{Infobox ship image
| Ship image = [[File:Sandhayak (J18) during its launch ceremony.jpg|250px]]
| Ship caption = Sandhayak (J18) during its launch ceremony
}}
{{Infobox ship class overview
| Builders = *[[Garden Reach Shipbuilders and Engineers]]
| Operators = {{navy|India}}
| Class before = {{sclass|Makar|survey catamaran|4}}
| Class after =
| Subclasses =
| Built range =
| In commission range =
| Total ships building = 4
| Total ships planned = 4
| Total ships completed =
| Total ships cancelled =
| Total ships active =
| Total ships laid up =
| Total ships lost =
| Total ships retired =
| Total ships scrapped =
| Total ships preserved =
}}
{{Infobox ship characteristics
| Hide header =
| Header caption =
| Ship type = Hydrographic survey ship
| Ship displacement = {{convert|3300|t|LT|lk=on|0}}
| Ship length = {{convert|110|m|ftin|abbr=on}}
| Ship beam =
| Ship draft =
| Ship propulsion =
| Ship speed = {{convert|18|kn|lk=in}}
| Ship range = *{{convert|6500|nmi|abbr=on|lk=in}} at {{convert|14|kn}} to {{convert|16|kn}}
| Ship complement = 231
| Ship armament = [[CRN 91 Naval Gun|CRN 91]] naval gun
| Ship sensors = *Autonomous Underwater Vehicles (AUVs)
*Remote Operated Vehicles (ROVs)
*Multi Beam Echo Sounders
| Ship aircraft = 1 × [[HAL Chetak]] helicopter
| Ship aircraft facilities = [[Helipad]]
| Ship notes =
}}
|}
The '''GRSE-class survey vessels''' are a series of four survey vessels planned to be built by [[Garden Reach Shipbuilders and Engineers]] (GRSE), [[Kolkata]] for the [[Indian Navy]]. The first vessel is expected to be commissioned by 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.<ref name=":0">{{Cite web|url=http://pib.nic.in/newsite/PrintRelease.aspx?relid=184472|title=MOD signs contract with GRSE for supply of four survey vessels for Indian Navy|website=pib.nic.in|access-date=2018-11-26}}</ref><ref name=":1">{{Cite web|url=https://www.janes.com/article/84181/indian-mod-orders-four-survey-ships-from-grse|title=Indian MoD orders four survey ships from GRSE {{!}} Jane's 360|website=www.janes.com|access-date=2018-11-26}}</ref><ref>{{Cite news|url=https://economictimes.indiatimes.com/news/defence/grse-to-build-four-survey-vehicles-for-indian-navy-contract-inked/articleshow/66431579.cms|title=GRSE to build four survey vehicles for Indian Navy, contract inked|date=2018-10-30|work=The Economic Times|access-date=2018-11-26}}</ref><ref>{{Cite web|url=https://www.shephardmedia.com/news/imps-news/grse-supply-survey-vessels-indian-navy/|title=GRSE to supply vessels to Indian Navy - NWI - Naval Warfare - Shephard Media|website=www.shephardmedia.com|language=en|access-date=2018-11-26}}</ref>

== History ==
In April 2016, the Indian Navy issued a request for proposal to six shipyards, four public and two private, for the construction of four large survey vessels. In September 2017, GRSE emerged as the lowest bidder with a bid of ₹2,435.15 crore, beating [[Larsen & Toubro|L&T Shipbuilding]] by ₹742 [[crore]]. The contract was awarded to GRSE by [[Ministry of Defence (India)|Ministry of Defence]] on 30 October 2018. The first ship is expected to be delivered within 36 months from the date of signing the contract.<ref name=":0" /><ref name=":1" /><ref name=":2">{{Cite web|url=https://www.financialexpress.com/industry/rs-2500-cr-indian-navy-4-vessel-project-bagged-by-garden-reach-shipbuilders/852507/|title=Rs 2500 cr Indian Navy 4 vessel project bagged by Garden Reach Shipbuilders - The Financial Express|website=www.financialexpress.com|access-date=2018-11-26}}</ref>

== Design ==
The ships have a displacement of {{convert|3300|t|LT|0}} and a length of {{Convert|110|m|ftin}}. They have a cruising speed of {{Convert|16|knot|lk=in}} with a maximum speed of {{Convert|18|knot}} and an operating range of {{Convert|6500|nmi|lk=in}} at a speed of {{Convert|14|to|16|knot}}. The ships have a complement of 231 and are equipped with [[Hydrography|hydrographic]] sensor equipment and a [[hangar]] which can accommodate one advanced light helicopter. In the secondary role, the ships can be fitted with a [[CRN 91 Naval Gun|CRN 91]] naval gun. In addition, the vessels will follow MARPOL ([[marine pollution]]) Standards of the [[International Maritime Organization|International Maritime Organisation]] and will be built per Classification Society Rules and Naval Ship Regulations.<ref name=":0" /><ref name=":2" /><ref>{{Cite news|url=https://www.deccanchronicle.com/nation/current-affairs/301018/grse-bags-over-rs-2000-crore-contract-to-build-4-large-survey-vessels.html|title=GRSE bags over Rs 2,000 crore contract to build 4 large survey vessels for Navy|date=2018-10-30|work=Deccan Chronicle|access-date=2018-11-26|language=en}}</ref>

== Development ==
The keel of the first ship ''Sandhayak ,''named after its predecessor {{INS|Sandhayak|J18|2}}, was laid down on 8 November 2019 and launched on 5 December 2021. It is expected to be commissioned by 2023.<ref name="sadhayak_launch">{{cite press release |url=https://pib.gov.in/PressReleasePage.aspx?PRID=1778276 |title=First of the four ships under Survey Vessel (Large) project for Indian Navy launched in the presence of Raksha Rajya Mantri at GRSE, Kolkata |publisher=PIB |date=2021-12-05}}</ref><ref name="3025_launch">{{cite tweet|number=1467495738791714823|user=indiannavy|title=Sandhayak and her three other sister ships are scheduled to be delivered between Oct 22 and Jan 24|date=2021-12-05}}</ref>

The second vessel of the class, ''Nirdeshak'' , was laid on 1 December 2020 and was subsequently launched on 26 May 2022.

The third ship, ''Ikshak'', was laid down on 6 August 2021 and launched on 26 November 2022.<ref name="pib-060821">{{cite web |date=2021-08-06 |title=KEEL LAYING CEREMONY FOR 1st WARSHIP OF ASW SHALLOW WATER CRAFT PROJECT AND 3rd WARSHIP OF SURVEY VESSEL LARGE PROJECT |url=https://pib.gov.in/PressReleasePage.aspx?PRID=1743323 |publisher=PIB}}</ref><ref>{{Cite web |date=2022-11-26 |title=GRSE launches 3rd Survey Vessel (Large) within a year |url=https://psuwatch.com/grse-launches-3rd-survey-vessel-large-within-a-year-after/ |access-date=2022-11-26 |language=en-US}}</ref>

== Ships of the class ==
{| class="wikitable"
! Name
! Yard No
! Pennant
! Laid down
! Launched
! Commissioned
! Home-port
! Status
|-
| {{INS|Sandhayak|2021|2}}
| 3025
| J18
| 8 November 2019<ref>{{cite tweet|user=OfficialGRSE|number=1192733198821675010|title=Vice Admiral Ajay Kumar Saxena, PVSM, AVSM, VSM, Controller of Warship Production & Acquisition delivering his speech on the Keel Laying Ceremony of First Survey Vessel Large won on competitive bidding by GRSE|date=2019-11-08}}</ref>
| 5 December 2021<ref name="sadhayak_launch"/>
| 2023 ''(expected)''<ref name="3025_launch"/>
|
| Fitting Out
|-
| ''Nirdeshak''
| 3026
| J19
| 1 December 2020<ref>{{Cite web|last=Mathew|first=Arun|title=GRSE Lays Keel for Second Survey Vessel (Large) for Indian Navy|url=https://defpost.com/grse-lays-keel-for-second-survey-vessel-large-for-indian-navy/|access-date=2020-12-01|website=DefPost|language=en-GB}}</ref>
| 26 May 2022<ref name="grse-icici">{{cite web|url=http://www.grse.in/images/press_news/EQUITYBULL20S.jpg|title=GRSE-ICIC security|publisher=GRSE|access-date=2021-06-05}}</ref>
| 2023 ''(expected)''
|
| Launched<ref>{{cite web|url=http://www.grse.in/pdf/investors/Annual%20Report%202019-20.pdf#page=25|title=Annual Report 2019-20|publisher=GRSE|access-date=25 September 2020}}</ref>
|-
| ''Ikshak''
| 3027
| J23
| 6 August 2021<ref name="pib-060821"/>
| 26 November 2022 <ref>{{cite tweet|number=1594568061616812032|user=OfficialGRSE|title=Launch of the GRSE built 3rd Survey Vessel (Large) Yard 3027|date=2022-11-21}}</ref>
| 2023 ''(expected)''
|
| Launched<ref>{{cite tweet|user=OfficialGRSE|number=1328301982067507200|title=Production of Survey Vessel(Large),Yard 3027, has commenced today.|date=16 November 2020}}</ref>
|-
|
| 3028
|
| 17 June 2022 <ref>{{cite tweet|user=OfficialGRSE|number=1537789888804057088|title=GRSE achieved a rare feat by laying the keels of three vessels -SVL(Yard 3028), ASWSWC (Yard 3030 & 3031) together for the Indian Navy on 17 Jun 22.|date=17 June 2022}}</ref>
| Q2 2023 ''(expected)''
| 2024 ''(expected)''
|
| Under construction<ref>{{cite tweet|user=OfficialGRSE|number=1356159728846598144|title=Production of 4th and last in the series of 04 Survey Vessel (Large), Yard 3028 has commenced today.|date=1 February 2021}}</ref>
|}

== See also ==

* [[Future of the Indian Navy]]

== References ==
{{Reflist}}

{{Ship classes of the Indian Navy}}

[[Category:Survey ships of the Indian Navy]]
[[Category:Auxiliary research ship classes]]

GRSE-class survey vessel - Revision history

Bot at 11:07, 11 December 2022