1. Indigenous SSN Class-Attack Submarine
The government of India Approved the construction of 6 nuclear-powered submarines in February 2015. These will be designed by the Navy’s in-house Directorate of Naval Design and indigenously built in Shipbuilding Centre Vishkapatnam. Indian Government approved the project of 6 nuclear-powered attack submarines and seven stealth frigate at the cost of about $16 billion.
It is expected that the new domestically build submarines are likely to be based on Akula-class submarines because India uses the Russian Nuclear Submarines INS Chakra for about 10 years on lease. The submarines will be powered by a Miniature pressurised water reactor(PWR) being developed by the Bhabha Atomic Research Centre Which has already supplied a similar 83 miniature reactor for the Arihan-class SSBNs.
2. Arihant Class- Ballistic Missile Submarine (SSBN)
The Arihant Class is a class of nuclear-powered ballistic missile submarines being built for the Indian Navy. The lead Vessel of the class, INS Arihant was first launched in 2009 and began sea trails in December 2014. It is expected to commissioned in Early 2016 . Presently it is under sea trails. The Arihant-class submarine are being built under the US $2.9 billion Advanced Technology Vessel (ATV) project to design and build nuclear-powered submarines.They will be the first nuclear submarines designed and built by India.
3. Kalvari-Class-Attack Submarine
The Kalvari Class is a class of Submarine based On the Scorpene-class submarine. The diesel-electric powered Scorpene submarine to be called INS Kalvari after commissioning will undergo extensive sea trials before it is cleared to formally join the Indian Navy. The diesel-electric submarines are being built at the state-run Mazgaon docks in Mumbai; they are expected to be inducted into the Navy by 2018, about four years later than planned.
Project delayed by 4 years. The first submarine is planned to be in service by 2016 and the last by 2020. India plans to make 6 in total where 5 are under construction and 1 submarine named INS Kalvari has been launched to undergo sea trials on April 2015.
4. Akula Class-Attack Submarine
The Akula class submarines is a nuclear-powered submarine first deployed by the Soviet Union in 1986. It is being operated by three nations namely Soviet union, Russian Navy and Indian Navy. India leased INS Chakra the Akula Class submarine from Russia.It was officially inducted into the Indian Navy on April 4, 2012.Before leasing more than three hundred Indian Navy personnel were trained in Russia for the operation of the Akula II Submarine Nerpa.Later on, it is named INS Chakra.
5. Swimmer Delivery Vehicle-Midget Submarine
The Indian Navy Swimmer Delivery Vehicle(SDV) I a planned class of Midget Submarine for the Indian navy. under this programme, the Indian Navy will acquire 2 midget submarines for use as Swimmer delivery vehicles. These submarines will be used for conducting underwater special operations by MARCOS. Both submarines will be constructed by Hindustan Shipyard limited, The cost of procuring the two SDVs will be around 2000 crore.
6. Project 72I Class submarine-Attack Submarine
The Project 75I-class submarine is a follow-on of the project 75 Kalvari-Class submarine for the Indian Navy. Indian navy has acquired 6 diesel-electric submarines under this project which features advanced Air Independent Propulsion (AIP) system that enables the submarines to stay submerged for longer duration and increasing its operational range sustainability. All the 6 submarines are expected to be constructed in Indian Shipyards and the project costs around $8.1 Billion. In October 2014, The project got a green signal from Defence Acquisition Council.
The Project 75I submarines will have a vertical Launching system that enables the submarine to carry Brahmos Supersonic cruise missile making it fully capable to do anti-surface and anti-ship warfare missions. The submarines will be armed with torpedoes and feature advanced stealth capabilities such as greater suppress noise and acoustics signature.
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