The submarines will be designed by Directorate of Naval Design (now call Warship Design Bureau) and the development is expected to continue till 2025. On 24 June 2019, it was reported that ₹100 crore (US$13 million) have been allocated for the initial phase of the project. 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 MW miniature reactor for the Arihant-class submarine SSBNs. As per the initial plan, first 4 Arihant class submarines and later much larger S5 class nuclear ballistic missile submarines, and 6 nuclear attack submarines were planned. Patrolling by People's Liberation Army Navy ships further fast-tracked India's naval expansion programs. ![]() The program to construct and deploy a fleet of nuclear submarines was first envisaged in late 1990s. Since India is a traditional user of Russian nuclear submarines (with INS Chakra on lease) the new domestically built submarines would be third class of SSN operated by Indian navy after leased Charlie I and Akula II-class submarines. The construction is expected to commence on 2023-24 while the first submarine is expected to enter service in 2032. These will be designed by the Navy's in-house Directorate of Naval Design and built in India at the Shipbuilding Centre at Visakhapatnam. The Government of India approved the construction of six of such submarines in February 2015. The Indian Navy aims to procure new nuclear-powered attack submarines under Project 75 Alpha. Varunastra heavyweight torpedo, Nirbhay, BrahMos and BrahMos-II land-attack/ anti-ship cruise missiles ₹1.2 lakh crore (US$15 billion) total cost Most PROBABLE and HIGHLY recommended topics "you should never miss" to prepare to crack UPSC Prelims Examination.For the conventional-attack submarine programme, see Project 75I-class submarine. The success of INS Arihant gives a fitting response to those who indulge in nuclear blackmail “In an era such as this, a credible nuclear deterrence is the need of the hour. Calling it a major achievement for the country, Prime Minister said that INS Arihant will help in protecting the country from external threats and contribute to the atmosphere of peace in the region.On August 10, 2013, Arihant’s 83 MW nuclear reactor got “critical”.First 6,000-tonne ATV, named INS Arihant, launched into the water at ship-building centre in Visakhapatnam in 2009.However, the actual construction of 3 SSBNs began in the 1990s under secret Advanced Technology Vessel (ATV) project. The hunt for a nuclear submarine in India began in the 1970s.Though the missiles on INS Arihant, with a range of 750km and 3,500km, pale in comparison to missiles on Chinese, the US and Russian submarines, which have ranges of well over 5,000 km, yet the nuclear-triad has been a critical addition to India’s arsenal.At the third sport are the European powers, France and the UK, with 10 to 12 nuclear submarines each. ![]()
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