INS Sindhurakshak (S63): Difference between revisions

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{{Use dmy dates|date=May 2022}}

|Ship flag={{shipboxflag|India|naval 2022}}

|Ship decommissioned= 6 March 2017<ref name="Decom.">{{cite web|title=Submarine Sindhurakshak to be decommissioned before rains - Times of India|url=http://timesofindia.indiatimes.com/city/mumbai/submarine-sindhurakshak-to-be-decommissioned-before-rains/articleshow/57381318.cms|website=The Times of India|access-date=9 March 2022}}</ref>

|Ship complement= Seven officers and 61 ratings<ref name=inavysc>{{cite web|title=Sindhughosh Class|url=http://www.indiannavy.nic.in/naval-fleet/sindhughosh-class|publisher=Indian Navy|access-date=14 August 2013|url-status=dead|archive-url=https://web.archive.org/web/20130819094409/http://indiannavy.nic.in/naval-fleet/sindhughosh-class|archive-date=19 August 2022}}</ref>

'''INS ''Sindhurakshak''''' ([[Sanskrit]], for ''Protector of the Seas'')<ref>{{cite news|title=18 sailors feared killed in INS Sindhurakshak explosion|url=http://www.livemint.com/Politics/7WtO8WducFYz3LZDt5Iv3N/18-Indian-sailors-feared-trapped-after-explosion-on-submarin.html|access-date=17 August 2013|newspaper=Livemint|date=14 August 2022}}</ref> was a Russian-made [[Kilo-class submarine|Kilo-class]] 877EKM<ref>{{cite news|title=Project 877 Paltus Kilo-class Submarine|url=http://en.rian.ru/infographics/20130814/182767750.html|access-date=23 August 2013|newspaper=Rian}}</ref><ref>{{cite news|title=INS Sindhurakshak tragedy: Defence PRO says chances of survivors unlikely|url=http://indiatoday.intoday.in/story/ins-sindhurakshak-tragedy-defence-pro-says-chances-of-survivors-unlikely/1/299798.html|access-date=23 August 2013|newspaper=[[India Today]]|date=16 August 2022}}</ref><ref>{{cite news|title='India should seek Russian help in INS Sindhurakshak rescue': Defence experts|url=http://www.business-standard.com/article/news-ani/india-should-seek-russian-help-in-ins-sindhurakshak-rescue-defence-experts-113081600651_1.html|access-date=23 August 2013|newspaper=[[Business Standard]]|date=23 August 2022}}</ref> ({{sclass|Sindhughosh|submarine|0}}) diesel-electric [[submarine]] of the [[Indian Navy]].<ref name=in-sg>{{cite web|title=Sindhughosh Class - Active submarines of the Indian Navy|url=http://indiannavy.nic.in/naval-fleet/submarines-service|publisher=Indian Navy|access-date=14 August 2013|url-status=dead|archive-url=https://web.archive.org/web/20130819031759/http://indiannavy.nic.in/naval-fleet/submarines-service|archive-date=19 August 2022}}</ref> Commissioned on 24 December 1997, it was the ninth of the ten Kilo-class submarines in the Indian Navy.<ref name=it12a13/> On 4 June 2010, the [[Ministry of Defence (India)|Indian Defence Ministry]] and Zvezdochka shipyard signed a contract worth US$80 million to upgrade and overhaul the submarine. After the overhaul, it returned to India from Russia between May and June 2013.<ref name=TOI1>{{cite web|title=Fire-ravaged Indian Navy submarine sinks, Antony confirms deaths|url=http://timesofindia.indiatimes.com/india/Fire-ravaged-Indian-Navy-submarine-sinks-Antony-confirms-deaths/articleshow/21819584.cms|work=The Times of India|access-date=14 August 2022}}</ref>

The submarine suffered a major fire and explosion on 14 August 2013 and sank at Mumbai's [[Bombay Dockyard|naval dockyard]] with the death of 18 crew members.<ref>{{cite news|title=Submarine INS Sindhurakshak sinks after major blast in Mumbai; all 18 feared dead|url=http://www.deccanchronicle.com/130814/news-current-affairs/article/fire-blasts-submarine-mumbai|access-date=14 August 2013|newspaper=Deccan Chronicle|date=14 August 2013|url-status=dead|archive-url=https://web.archive.org/web/20130817002745/http://www.deccanchronicle.com/130814/news-current-affairs/article/fire-blasts-submarine-mumbai|archive-date=17 August 2022}}</ref><ref>{{cite news|title=Submarine Sindhurakshak sinks after blast, casualties feared|url=http://www.thehindu.com/news/national/submarine-sindhurakshak-sinks-after-blast-casualties-feared/article5020065.ece|access-date=14 August 2013|newspaper=The Hindu|date=14 August 2022}}</ref><ref name=ITV/><ref name=TOI2>{{cite web|title=Huge blow to Indian Navy as submarine explodes with 18 men|url=http://timesofindia.indiatimes.com/india/Huge-blow-to-Indian-Navy-as-submarine-explodes-with-18-men/articleshow/21825083.cms|work=The Times of India|access-date=14 August 2022}}</ref>

''Sindhurakshak'' was constructed at the [[Admiralty Shipyard]] in [[Saint Petersburg]], [[Russia]]. Construction of the submarine began in 1995. It was launched in June 1997 and delivered to [[India]] in December 1997.<ref name=it12a13>{{cite news|title=INS Sindhurakshak was refitted in Russia's Zvezdochka shipyard|url=http://indiatoday.intoday.in/story/ins-sindhurakshak-was-refitted-in-russia-zvezdochka-shipyard/1/299429.html|access-date=14 August 2013|newspaper=India Today|date=14 August 2022}}</ref><ref name=zn27j13>{{cite news|title=Russia hands over to India refitted submarine|url=http://zeenews.india.com/news/nation/russia-hands-over-to-india-refitted-submarine_825251.html|access-date=14 August 2013|newspaper=Zee News|date=27 January 2022}}</ref>

''Sindhurakshak'' was deployed very close to [[Karachi]], [[Pakistan]] during the [[Kargil War#Naval action|Kargil War]] in 1999.<ref>{{cite news|title=Torpedoes are coolest place to sleep on|url=http://timesofindia.indiatimes.com/india/Torpedoes-are-coolest-place-to-sleep-on/articleshow/21871241.cms|access-date=17 August 2013|newspaper=[[The Times of India]]|date=17 August 2022}}</ref><ref>{{Cite web|title = INS Sindhurakshak tragedy: We revisit the late J Dey's 2009 report on the submarine|url = http://archive.mid-day.com/news/2013/aug/170813-ins-sindhurakshak-tragedy-we-revisit-the-late-j-deys-2009-report-on-the-submarine.htm|website = Mid Day|access-date = 2015-07-31|last = Dey|first = J|date = 17 August 2013|publication-place = Mumbai|archive-url = https://web.archive.org/web/20131111194146/http://www.mid-day.com/news/2013/aug/170813-ins-sindhurakshak-tragedy-we-revisit-the-late-j-deys-2009-report-on-the-submarine.htm|archive-date = 11 November 2013|url-status = dead}}</ref>

On 13 February 2006, during the submarine's deployment in [[Vishakhapatnam]] under the [[Eastern Naval Command]], the then [[President of India]] [[A. P. J. Abdul Kalam]] became the first Indian head of state to sail in a submarine. He was given a demonstrative excursion, during which the submarine dived and sailed in the [[Bay of Bengal]] for a few hours. He was accompanied by the [[Chief of Naval Staff of the Indian Navy|Chief of Naval Staff]] [[Arun Prakash]]. The submarine was commanded by [[Commander]] P S Bisht.<ref>{{cite news|title=Kalam's sortie in INS Sindhurakshak|url=http://www.hindu.com/2006/02/14/stories/2006021420720100.htm|archive-url=https://web.archive.org/web/20060301070440/http://www.hindu.com/2006/02/14/stories/2006021420720100.htm|url-status=dead|archive-date=1 March 2006|access-date=19 August 2013|newspaper=[[The Hindu]]|date=14 February 2022}}</ref><ref>{{cite news|title=When an ecstatic Kalam rode the INS Sindhurakshak|url=http://indiatoday.intoday.in/gallery/abdul-kalam-ins-sindhurakshak-indian-navyvizag-former-president/1/9952.html|access-date=19 August 2013|newspaper=India Today}}</ref>

A fire broke out aboard ''Sindhurakshak'' while the vessel was in [[Visakhapatnam]] in February 2010. One sailor was killed and two others were injured. Navy officials reported that the fire had been caused by an explosion in the submarine's battery compartment, which occurred due to a faulty battery valve that leaked hydrogen gas.<ref name=it14a13>{{cite news|title=Explosion on Indian Navy submarine INS Sindhurakshak possibly due to gas buildup|url=http://indiatoday.intoday.in/story/indian-navy-submarine-ins-sindhurakshak-fire-explosion-gas-buildup/1/299408.html|access-date=14 August 2013|date=14 August 2022}}</ref><ref>{{cite news |title=Fire mishap on INS Sindhurakshak due to explosion in battery: Navy |work=Hindustan Times|url=http://www.hindustantimes.com/News-Feed/India/Fire-mishap-on-INS-Sindhurakshak-due-to-explosion-in-battery-Navy/Article1-513475.aspx |date=27 February 2010 |access-date=14 August 2013 |url-status=dead |archive-url=https://web.archive.org/web/20130817013123/http://www.hindustantimes.com/News-Feed/India/Fire-mishap-on-INS-Sindhurakshak-due-to-explosion-in-battery-Navy/Article1-513475.aspx |archive-date=17 August 2022}}</ref>

After the fire damage in 2010, ''Sindhurakshak'' was transported to Russia on board a heavy lift ship from [[Visakhapatnam]] in June 2010 for refit, overhaul and upgrade which lasted two and a half years.<ref name=isnov13>{{cite web|author=Commodore (Retd) Ranjit B Rai|title=The Indian Navy's Submarine Arm is Dependable|url=http://www.indiastrategic.in/topstories3022_The_Indian_Navys_Submarine_Arm_is_Dependable.htm|publisher=India Strategic|access-date=23 November 2022}}</ref> In August 2010, ''Sindhurakshak'' arrived at the Zvezdochka shipyard in Russia. The submarine was modernised, repaired and retrofitted under Project 08773, and after the upgrade, the sea trials started in October 2012. The upgrades included improved [[electronic warfare]] systems, an integrated weapon control system and a new cooling system, and were expected to extend the service life of the submarine by ten years.<ref name=it14a13/><ref name="nyt14j">{{cite news|title=Explosion Partly Sinks Indian Naval Submarine|url=https://www.nytimes.com/2013/08/14/world/asia/explosion-partly-sinks-indian-naval-submarine.html?_r=0|access-date=14 August 2013|newspaper=The New York Times|date=14 August 2022}}</ref> The [[3M-54 Klub#Klub-S.5B3.5D|Club-S]] (3M54E1 anti-ship and 3M14E land attack) missiles, [[USHUS (sonar)|USHUS]] sonar, СCS-MK-2 radio communication systems and Porpoise radio-locating radar, and other safety-enhancing features were incorporated.<ref name=it12a13/> The submarine was handed back to the Indian Navy on 27 January 2013,<ref name=zn27j13/> after which it sailed back to India, under Commander Rajesh Ramkumar. This was the first time an Indian submarine had navigated under ice.<ref>{{cite news|title=Sindhurakshak Set|url=http://rusembassy.in/index.php?option=com_content&view=article&id=4739%3Asindhurakshak-set&catid=16%3Apress-on-bilateral-relations&lang=en|access-date=14 August 2013|newspaper=Russian Embassy, India|date=27 June 2022}}</ref><ref>{{cite web|url=http://en.rian.ru/mlitary_news/20100812/160176840.html|access-date=17 August 2010|title=Russia to modernize fifth Indian submarine |publisher=RIA Novosti}}</ref><ref>{{cite news|title=Zvezdochka Ship Repair Delivers Upgraded Submarine Sindhurakshak to Indian Navy|url=http://navaltoday.com/2013/02/01/zvezdochka-ship-repair-delivers-upgraded-submarine-sindhurakshak-to-indian-navy/|access-date=14 August 2013|newspaper=Naval Today|date=1 February 2022}}</ref>

In March 2013, while returning from the refit, ''Sindhurakshak'' encountered severe storms in the [[Mediterranean Sea]] when it was travelling near [[Alexandria]]. This was part of the submarine's extensive three-month-long deployment, where it traveled 10,000 miles.<ref name="nyt14j"/><ref>{{cite news|title=Russian-Built Submarine Catches Fire in Mumbai, Sailors Feared Dead|url=http://www.themoscowtimes.com/news/article/russian-built-submarine-catches-fire-in-mumbai-sailors-feared-dead/484561.html|access-date=16 August 2013|newspaper=The Moscow Times|date=15 August 2022}}</ref> The severity of the storms prevented the Alexandria port authorities from sending a [[tugboat]], and the shallow waters prevented the submarine from diving. An emergency call was placed via the Indian [[Ministry of External Affairs (India)|Ministry of External Affairs]] to the [[Egyptian Navy]], which sent its latest tugboats and towed the submarine to [[Port Said]].<ref>{{cite news|title=Egyptian Navy rescued Sindhurakshak in April|url=http://www.indianexpress.com/news/egyptian-navy-rescued-sindhurakshak-in-april/1155709/|access-date=15 August 2013|newspaper=The Indian Express|date=15 August 2022}}</ref><ref>{{cite news|title=Indian submarine INS Sindhurakshak in distress gets Egyptian help|url=http://articles.economictimes.indiatimes.com/2013-05-27/news/39557430_1_submarine-sindhurakshak-russian-kilo-class|access-date=15 August 2013|newspaper=The Economic Times|date=27 May 2022}}</ref>

On 14 August 2013, the ''Sindhurakshak'' sank after explosions caused by a fire on board when the submarine was berthed at [[Mumbai]]. The fire, followed by a series of ordnance blasts on the armed submarine, occurred shortly after midnight. The fire was put out within two hours though, due to damage from the explosions, the submarine sank and was partially submerged in 15 metres deep water at its [[Berth (moorings)|berth]], with only a portion of the sail visible above the water surface.<ref name="bs0991">{{cite news|title=International help to salvage sunken submarine|url=http://www.business-standard.com/article/current-affairs/international-help-to-salvage-sunken-submarine-113081900991_1.html|access-date=20 August 2013|newspaper=Business Standard|date=20 August 2022}}</ref><ref>{{cite web |url=http://www.indianexpress.com/picture-gallery/ins-sindhurakshak-submarine-submerges-after-explosion/3209-1.html |title=PHOTOS: INS Sindhurakshak submarine submerges after explosion Photo Gallery, Picture News Gallery |work=The Indian Express|access-date=2013-08-18 |url-status=dead |archive-url=https://web.archive.org/web/20130818082158/http://www.indianexpress.com/picture-gallery/ins-sindhurakshak-submarine-submerges-after-explosion/3209-1.html |archive-date=18 August 2022}}</ref><ref name=nyt14j/><ref name="dnaiss">{{cite news|title=INS Sindhurakshak fire set off torpedoes causing minor damage to INS Sindhuratna; fate of 18 sailors on board, Initial immediate Salvage was conducted by Grafftech Marine & Engineering Pvt Ltd, a registered marine firm with the Indian Navy for providing diving & dredging services, the Salvage operation was headed as an joint military operations by Capt. Varun Singh MARCOS OIC CCDT & Dypt CEO (Salvage Expert) - Harish Naidu under the continued monitoring of INS VAJRABAHU IMMEDIATE BASE-HQ for ekm submarines, HQWNC, CCDT (Command clearance diving team) HQ-WNC (Headquarters Western Naval Command), initial cadaver were salvaged in multiple parts.|url=http://www.dnaindia.com/mumbai/1874239/report-ins-sindhurakshak-fire-set-off-torpedoes-causing-minor-damage-to-ins-sindhuratna-fate-of-18-sailors-on-board-uncertain|access-date=14 August 2013|newspaper=DNA India|date=14 August 2022}}</ref><ref>{{cite news|title=Fears for 18 as Indian navy submarine explodes and sinks in Mumbai|url=https://www.theguardian.com/world/2013/aug/14/indian-navy-submarine-explodes-sinks-18-crew|access-date=14 August 2013|newspaper=The Guardian|date=14 August 2022}}</ref> Three sailors on board reportedly jumped off to safety. Navy divers were also brought in as there was a possibility that 18 personnel were trapped inside and Defence Minister [[A. K. Antony]] confirmed that there were fatalities.<ref name="ITV">{{cite web|title=India's defence minister confirms deaths on submarine|url=http://www.itv.com/news/update/2013-08-14/indias-defence-minister-confirms-deaths-on-submarine/|publisher=ITV|access-date=14 August 2022}}</ref> Other sources stated that a small explosion occurred around midnight which then triggered the two larger explosions.<ref name="nyt14j"/>

Due to the explosion, the front section of the submarine was twisted, bent and crumpled, and water had entered the forward compartment. Another submarine, {{INS|Sindhughosh|S55|6}} was berthed very close to ''Sindhurakshak'' in the congested Mumbai naval dockyard; and sustained minor fire damage, though the navy did not release details of the extent of damage.<ref name=bs0991/><ref>{{cite news|title=Divers reach front cabin |url= http://www.telegraphindia.com/1130819/jsp/nation/story_17246221.jsp#.UhM8HZIwemo|access-date=20 August 2013|newspaper=The Telegraph|date=19 August 2022}}</ref> ''Sindhurakshak'''s [[double hull]] was credited with preventing further damage to surrounding vessels.<ref>{{cite news|title=INS Sindhurakshak tragedy: Submarine's twin hulls contained fire, reduced losses|url=http://www.indianexpress.com/news/ins-sindhurakshak-tragedy-submarines-twin-hulls-contained-fire-reduced-losses/1155858/0|access-date=16 August 2013|newspaper=The Indian Express|date=16 August 2022}}</ref><ref name=dnaiss/><ref>{{cite news|title=INS Sindhurakshak: A ''Sindhughosh''-class submarine with latest weapons|url=http://ibnlive.in.com/news/ins-sindhurakshak-a-sindhughosh-class-submarine-with-latest-weapons/414168-3-237.html|archive-url=https://web.archive.org/web/20130817150918/http://ibnlive.in.com/news/ins-sindhurakshak-a-sindhughosh-class-submarine-with-latest-weapons/414168-3-237.html|url-status=dead|archive-date=17 August 2013|access-date=14 August 2013|newspaper=IBN Live|date=14 August 2022}}</ref> Official sources at the time said it was "highly unlikely" the submarine could be returned to service. The navy planned to begin salvage operations after the rescue operation was completed.<ref>{{cite news|title=INS Sindurakshak: Indian Navy mulls over roping in Singapore firm for salvage|url=http://www.dnaindia.com/india/1875060/report-ins-sindurakshak-indian-navy-mulls-over-roping-in-singapore-firm-for-salvage|access-date=16 August 2013|newspaper=DNA India|date=16 August 2022}}</ref><ref>{{cite news|title=INS Sindhurakshak: Indian navy's submarine woes|url=https://www.bbc.co.uk/news/world-asia-india-23691558|access-date=14 August 2013|publisher=BBC News|date=14 August 2022}}</ref> By 19 August, seven bodies had been recovered, with 11 still missing.<ref>{{cite news|title=Seventh body recovered from INS Sindhurakshak|url=http://www.thehindu.com/news/national/seventh-body-recovered-from-ins-sindhurakshak/article5038510.ece?homepage=true|access-date=23 August 2013|newspaper=The Hindu|date=19 August 2022}}</ref><ref>{{cite news|title=INS Sindhurakshak: Sixth body recovered, divers continue search in zero visibility|url=http://www.indianexpress.com/news/ins-sindhurakshak-sixth-body-recovered-divers-continue-search-in-zero-visibility/1156746/|access-date=23 August 2013|newspaper=The Indian Express|date=18 August 2022}}</ref><ref>{{cite web|title=Navy divers recover 5 bodies from Indian submarine INS Sindhurakshak|url=http://edition.cnn.com/2013/08/17/world/asia/india-submarine-disaster/index.html?eref=edition|publisher=CNN|access-date=17 August 2022}}</ref> On 31 August, six of the eleven recovered bodies had been identified and sent home for last rites with military honours.<ref>{{cite news|last=PTI|title=Sindhurakshak tragedy: Six bodies to be sent to hometowns|url=http://zeenews.india.com/news/nation/sindhurakshak-tragedy-six-bodies-to-be-sent-to-hometowns_873112.html|access-date=31 August 2013|newspaper=Zee News|date=31 August 2022}}</ref>

The Navy's preliminary report indicated that "an accident or inadvertent mishandling of ammunition" was the cause of the explosions; the full incident report would only be completed after the submarine was raised.<ref>{{cite news|title=Forget salvaging sunk sub INS Sindhurakshak, Navy yet to float tender|url=http://www.dnaindia.com/mumbai/1893477/report-forget-salvaging-sunk-sub-ins-sindhurakshak-navy-yet-to-float-tender|access-date=16 October 2013|newspaper=DNA India|date=25 September 2022}}</ref><ref>{{cite news|title=Navy's probe into submarine INS Sindhurakshak tragedy nowhere near completion|url=http://articles.timesofindia.indiatimes.com/2013-09-19/india/42217465_1_sindhurakshak-tragedy-ins-sindhurakshak-hdw|archive-url=https://web.archive.org/web/20130922083621/http://articles.timesofindia.indiatimes.com/2013-09-19/india/42217465_1_sindhurakshak-tragedy-ins-sindhurakshak-hdw|url-status=dead|archive-date=22 September 2013|access-date=16 October 2013|newspaper=[[The Times of India]]|date=19 September 2022}}</ref><ref name=Nazakat-Dasgupta2014>{{cite news|last1=Nazakat|first1=Syed|last2=Dasgupta|first2=Anupam|title='Sub'dued|url=http://week.manoramaonline.com/cgi-bin/MMOnline.dll/portal/ep/theWeekContent.do?programId=1073754900&contentId=16287597|access-date=10 March 2014|newspaper=The Week|date=3 March 2022}}</ref> The salvage contract was awarded on 31 January 2014 to Resolve India, a subsidiary of the US-based Resolve Marine Group.<ref name=Narayan2014>{{cite news|last=Narayan|first=V|title=Indian arm of US company wins Sindhurakshak salvage bid|url=http://timesofindia.indiatimes.com/india/Indian-arm-of-US-company-wins-Sindhurakshak-salvage-bid/articleshow/30312587.cms|access-date=10 March 2014|newspaper=The Times of India|date=13 February 2022}}</ref> The submarine was brought to the surface on 6 June 2014.<ref>{{cite news|url=http://www.firstpost.com/india/us-firm-salvages-ins-sindhurakshak-out-of-water-1559715.html|title=US firm salvages INS Sindhurakshak out of water|publisher=[[Firstpost]]|date=6 June 2022}}</ref> In December 2014, a naval court of inquiry arrived at the preliminary conclusion that human error as a result of crew fatigue caused the disaster. A senior officer stated that "the crew was working beyond their prescribed hours. Fatigue and exhaustion may have triggered human error that led to the accident. Standard operating procedures were violated at several levels".<ref>{{cite news|url=http://www.hindustantimes.com/india-news/mumbai/tired-crew-may-have-caused-mishap-on-ins-sindhurakshak/article1-1294592.aspx|title=Tired crew may have caused mishap on INS Sindhurakshak|work=[[Hindustan Times]]|date=9 December 2014|url-status=dead|archive-url=https://web.archive.org/web/20141222102939/http://www.hindustantimes.com/india-news/mumbai/tired-crew-may-have-caused-mishap-on-ins-sindhurakshak/article1-1294592.aspx|archive-date=22 December 2022}}</ref> A 2017 report by the [[Comptroller and Auditor General of India]] quoted the Navy's Board of Inquiry stating that "Submarine authorities concerned didn’t properly assess the crew fatigue, besides, the submarine was holding ammunition nearing life expiry".<ref>{{cite news |title=Indian Navy likely to appoint inspector general to ensure safety of warships |url=https://www.hindustantimes.com/india-news/indian-navy-likely-to-appoint-inspector-general-to-ensure-safety-of-warships/story-U0YGHp3eZ6BHCdKEd9Sp4H.html |access-date=20 July 2018 |work=Hindustan Times|date=20 July 2018 |language=en}}</ref>

Initially, the navy was hopeful of using ''Sindhurakshak'' after it was salvaged, but on [[Navy Day#Navy Day in India|Navy Day]] 2015, Vice Admiral [[Surinder Pal Singh Cheema|Cheema]] confirmed the Sindhurakshak would be disposed of.<ref name="Mumbai2015">{{cite news|last1=Mumbai|title=Submarine Sindhurakshak to be disposed of soon: Vice Admiral|url=http://indianexpress.com/article/india/india-news-india/submarine-sindhurakshak-to-be-disposed-of-soon-vice-admiral/|access-date=9 March 2016|work=The Indian Express|date=4 December 2022}}</ref><ref name=htd3>{{cite news|title=Indian Navy hopeful of using submarine that sank|url=http://www.hindustantimes.com/india-news/indian-navy-hopeful-of-using-submarine-that-sank/article1-1158679.aspx?hts0021|archive-url=https://web.archive.org/web/20131204213715/http://www.hindustantimes.com/india-news/indian-navy-hopeful-of-using-submarine-that-sank/article1-1158679.aspx?hts0021|url-status=dead|archive-date=4 December 2013|access-date=3 December 2013|newspaper=Hindustan Times|date=3 December 2022}}</ref><ref name=hin3d>{{cite news|title=Possible reuse of Sindhurakshak being explored|url=http://www.thehindu.com/news/national/possible-reuse-of-sindhurakshak-being-explored/article5418750.ece|access-date=3 December 2013|newspaper=The Hindu|date=3 December 2022}}</ref> After a period of use for the training of marine commandos, the submarine was sunk in 3000 metres of water in the Arabian Sea during June 2017.<ref>{{cite news|last1=Singh|first1=Rahul|title=Defunct submarine Sindhurakshak finally disposed of|url=http://www.hindustantimes.com/india-news/defunct-submarine-sindhurakshak-finally-disposed-of/story-bl7tSFcovB2uW1UzxIlqxK.html|access-date=11 September 2017|work=Hindustan Times|date=10 July 2017|location=New Delhi}}</ref><ref>{{cite news|last1=Rajput|first1=Rashmi|title=Navy sinks 'graveyard' INS Sindhurakshak|url=http://indianexpress.com/article/india/navy-sinks-graveyard-ins-sindhurakshak-4828999/|archive-url=https://web.archive.org/web/20170904233356/http://indianexpress.com/article/india/navy-sinks-graveyard-ins-sindhurakshak-4828999/|url-status=dead|archive-date=4 September 2017|access-date=11 September 2017|work=The Indian Express|date=5 September 2022}}</ref>