INS Aridhaman NEW DELHI: India’s sea-based nuclear deterrent will be strengthened soon as the country’s third indigenous Arihant-class nuclear-powered ballistic missile submarine (SSBN), INS Aridhaman (designated S4), is likely to be commissioned by April-May. “The commissioning of INS Aridhaman is expected by this summer as the submarine is currently in the final stages of sea trial,” a defence source told TOI.Last Dec, Navy chief Admiral D K Tripathi had said that INS Aridhaman would be commissioned this year.INS Aridhaman, built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in Visakhapatnam, will be larger (7,000 tonne) than predecessors INS Arihant and INS Arighaat (6,000 tonne), featuring enhanced capability to carry long-range K-4 missiles. INS Aridhaman will be armed with 24 K-15 Sagarika SLBMs (750 km range) and eight K-4 SLBMs (3,500 km range), which are capable of reaching most parts of Asia.Once it enters service, India will have three operational ballistic missile submarines under the Strategic Forces Command (SFC) at sea for the first time, moving the country closer to achieving ‘Continuous At-Sea Deterrence’, a strategic defence policy where a nation maintains at least one SSBN on patrol 365 days a year.As a stealthy underwater platform, INS Aridhaman boosts India’s “second-strike” capability—the ability to retaliate after a nuclear attack. It is designed to carry more long-range nuclear-tipped missiles than its predecessors INS Arihant and INS Arighaat.In addition to INS Aridhaman, the Indian Navy is securing an Akula-class SSN nuclear-powered attack submarine from Russia, commonly referred to as “Chakra III”, with expected delivery by 2027 or early 2028. Besides these submarine projects, India and Germany are in the final stages of negotiating a $8-10 billion Project-75(I) deal to build six advanced, conventional diesel-electric submarines equipped with Air-Independent Propulsion (AIP) technology.The new submarine acquisitions are timely as Pakistan is acquiring eight advanced Hangor-class diesel-electric attack submarines from China under a $5 billion 2015 deal to bolster its naval capabilities.INS Aridhaman is equipped with an 83 MW pressurised water reactor and advanced sonar suites, possesses indigenous USHUS and Panchendriya sonar systems for better target detection and has improved acoustic damping with anechoic tiles to reduce noise, making it harder to detect. Once operational, it will be based at Project Varsha, a high-security facility with underground pens near Visakhapatnam.End of ArticleFollow Us On Social MediaVideosEpstein Files: King Charles’ Brother & UK’s Former Prince Andrew Arrested For ‘Misconduct In Office'”We Can’t Be Seen As Weak”: Tharoor’s Bold Claim On Rafale Deal“Nothing Like Money”: Donald Trump Says 200% Tariff Warning Stopped India-Pak FightRishi Sunak Highlights India’s Rise As Global AI Powerhouse At Impact Summit’Don’t See How People Criticise!’ French President Emmanuel Macron Defends India-France Rafale DealFrom India To Bharat: PM Modi’s Nameplate Grabs Eyes, Draws Global Attention At AI Impact Summit’Challenges At Sea More Complex, Interconnected’, Says Rajnath Singh At MILAN 2026 Naval ExerciseRussia Affirms India Still Buys Russian Oil, Rejects Recent US Statements’India Well Positioned To Lead The World In AI’: OpenAI CEO Sam Altman At AI Impact SummitAI Rivals Altman, Amodei Snub Each Other, Turns India AI Impact Summit Photo Op With PM Modi Awkward123PhotostoriesThe 50: Prince Narula, Mr Faisu, Rajat Dalal to Shiv Thakare: Meet the Top 12 contestants of the reality show5 Vastu-approved fish to keep in your home aquarium for luck and prosperityChef Sanjeev Kapoor’s microwave cleaning tips will make your kitchen life easier5 times Bad Bunny made headlinesWhat’s it like to visit Jhalana Leopard Safari Park in Rajasthan?Top 5 shows to watch on OTT before ‘House of the Dragon Season 3’ arrives7 New High-Speed Rail Corridors! On Which Routes Will Bullet Trains Run In India? Check Cities, Travel Time – Top DetailsRamadan 2026: How to make Chicken Malai Tikka in an air fryer in under 20 minutes7 natural sleep experts from the animal kingdom8 popular types of cars and what they’re best used for123Hot PicksCigarette price hikeGold rate todayITC shareMadhya Pradesh budget 2026–27Income Tax CalculatorPublic holidays February 2026Bank Holidays februaryTop TrendingDeenTheGreatLarry WheelsMikaela ShiffrinNPCIL admit cardGate 2026 Answer KeyDTU ResultMukesh AmbaniBasit AliNBA Trade NewsTamil Nadu Free Electricity

INS Aridhaman NEW DELHI: India’s sea-based nuclear deterrent will be strengthened soon as the country’s third indigenous Arihant-class nuclear-powered ballistic missile submarine (SSBN), INS Aridhaman (designated S4), is likely to be commissioned by April-May. “The commissioning of INS Aridhaman is expected by this summer as the submarine is currently in the final stages of sea trial,” a defence source told TOI.Last Dec, Navy chief Admiral D K Tripathi had said that INS Aridhaman would be commissioned this year.INS Aridhaman, built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in Visakhapatnam, will be larger (7,000 tonne) than predecessors INS Arihant and INS Arighaat (6,000 tonne), featuring enhanced capability to carry long-range K-4 missiles. INS Aridhaman will be armed with 24 K-15 Sagarika SLBMs (750 km range) and eight K-4 SLBMs (3,500 km range), which are capable of reaching most parts of Asia.Once it enters service, India will have three operational ballistic missile submarines under the Strategic Forces Command (SFC) at sea for the first time, moving the country closer to achieving ‘Continuous At-Sea Deterrence’, a strategic defence policy where a nation maintains at least one SSBN on patrol 365 days a year.As a stealthy underwater platform, INS Aridhaman boosts India’s “second-strike” capability—the ability to retaliate after a nuclear attack. It is designed to carry more long-range nuclear-tipped missiles than its predecessors INS Arihant and INS Arighaat.In addition to INS Aridhaman, the Indian Navy is securing an Akula-class SSN nuclear-powered attack submarine from Russia, commonly referred to as “Chakra III”, with expected delivery by 2027 or early 2028. Besides these submarine projects, India and Germany are in the final stages of negotiating a -10 billion Project-75(I) deal to build six advanced, conventional diesel-electric submarines equipped with Air-Independent Propulsion (AIP) technology.The new submarine acquisitions are timely as Pakistan is acquiring eight advanced Hangor-class diesel-electric attack submarines from China under a  billion 2015 deal to bolster its naval capabilities.INS Aridhaman is equipped with an 83 MW pressurised water reactor and advanced sonar suites, possesses indigenous USHUS and Panchendriya sonar systems for better target detection and has improved acoustic damping with anechoic tiles to reduce noise, making it harder to detect. Once operational, it will be based at Project Varsha, a high-security facility with underground pens near Visakhapatnam.End of ArticleFollow Us On Social MediaVideosEpstein Files: King Charles’ Brother & UK’s Former Prince Andrew Arrested For ‘Misconduct In Office'”We Can’t Be Seen As Weak”: Tharoor’s Bold Claim On Rafale Deal“Nothing Like Money”: Donald Trump Says 200% Tariff Warning Stopped India-Pak FightRishi Sunak Highlights India’s Rise As Global AI Powerhouse At Impact Summit’Don’t See How People Criticise!’ French President Emmanuel Macron Defends India-France Rafale DealFrom India To Bharat: PM Modi’s Nameplate Grabs Eyes, Draws Global Attention At AI Impact Summit’Challenges At Sea More Complex, Interconnected’, Says Rajnath Singh At MILAN 2026 Naval ExerciseRussia Affirms India Still Buys Russian Oil, Rejects Recent US Statements’India Well Positioned To Lead The World In AI’: OpenAI CEO Sam Altman At AI Impact SummitAI Rivals Altman, Amodei Snub Each Other, Turns India AI Impact Summit Photo Op With PM Modi Awkward123PhotostoriesThe 50: Prince Narula, Mr Faisu, Rajat Dalal to Shiv Thakare: Meet the Top 12 contestants of the reality show5 Vastu-approved fish to keep in your home aquarium for luck and prosperityChef Sanjeev Kapoor’s microwave cleaning tips will make your kitchen life easier5 times Bad Bunny made headlinesWhat’s it like to visit Jhalana Leopard Safari Park in Rajasthan?Top 5 shows to watch on OTT before ‘House of the Dragon Season 3’ arrives7 New High-Speed Rail Corridors! On Which Routes Will Bullet Trains Run In India? Check Cities, Travel Time – Top DetailsRamadan 2026: How to make Chicken Malai Tikka in an air fryer in under 20 minutes7 natural sleep experts from the animal kingdom8 popular types of cars and what they’re best used for123Hot PicksCigarette price hikeGold rate todayITC shareMadhya Pradesh budget 2026–27Income Tax CalculatorPublic holidays February 2026Bank Holidays februaryTop TrendingDeenTheGreatLarry WheelsMikaela ShiffrinNPCIL admit cardGate 2026 Answer KeyDTU ResultMukesh AmbaniBasit AliNBA Trade NewsTamil Nadu Free Electricity


Indian Navy likely to commission third indigenous N-powered submarine ‘by this summer’

NEW DELHI: India’s sea-based nuclear deterrent will be strengthened soon as the country’s third indigenous Arihant-class nuclear-powered ballistic missile submarine (SSBN), INS Aridhaman (designated S4), is likely to be commissioned by April-May. “The commissioning of INS Aridhaman is expected by this summer as the submarine is currently in the final stages of sea trial,” a defence source told TOI.Last Dec, Navy chief Admiral D K Tripathi had said that INS Aridhaman would be commissioned this year.INS Aridhaman, built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in Visakhapatnam, will be larger (7,000 tonne) than predecessors INS Arihant and INS Arighaat (6,000 tonne), featuring enhanced capability to carry long-range K-4 missiles. INS Aridhaman will be armed with 24 K-15 Sagarika SLBMs (750 km range) and eight K-4 SLBMs (3,500 km range), which are capable of reaching most parts of Asia.Once it enters service, India will have three operational ballistic missile submarines under the Strategic Forces Command (SFC) at sea for the first time, moving the country closer to achieving ‘Continuous At-Sea Deterrence’, a strategic defence policy where a nation maintains at least one SSBN on patrol 365 days a year.As a stealthy underwater platform, INS Aridhaman boosts India’s “second-strike” capability—the ability to retaliate after a nuclear attack. It is designed to carry more long-range nuclear-tipped missiles than its predecessors INS Arihant and INS Arighaat.In addition to INS Aridhaman, the Indian Navy is securing an Akula-class SSN nuclear-powered attack submarine from Russia, commonly referred to as “Chakra III”, with expected delivery by 2027 or early 2028. Besides these submarine projects, India and Germany are in the final stages of negotiating a $8-10 billion Project-75(I) deal to build six advanced, conventional diesel-electric submarines equipped with Air-Independent Propulsion (AIP) technology.The new submarine acquisitions are timely as Pakistan is acquiring eight advanced Hangor-class diesel-electric attack submarines from China under a $5 billion 2015 deal to bolster its naval capabilities.INS Aridhaman is equipped with an 83 MW pressurised water reactor and advanced sonar suites, possesses indigenous USHUS and Panchendriya sonar systems for better target detection and has improved acoustic damping with anechoic tiles to reduce noise, making it harder to detect. Once operational, it will be based at Project Varsha, a high-security facility with underground pens near Visakhapatnam.



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