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INS Shishumar

1984 Shishumar-class submarine

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Source updated May 5, 2026

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INS Shishumar (S44) (lit. 'Dolphin') is the lead vessel of the Shishumar class of diesel-electric submarines of the Indian Navy. She was commissioned on 22 September 1986 under Commander P M Bhate.

01Mid Life Upgrade

Indian Navy awarded $151 million contract for mid-life upgrade and certification of INS Shishumar, the refit will be carried out by Mazagon Dock, Mumbai with technical cooperation from ThyssenKrupp Marine Systems.

The refit is planned to be completed by 2021 with a similar upgrade for another vessel of Shishumar class to follow.

Watch videos about INS ShishumarExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “INS Shishumar”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Images, from Wikimedia Commons:

INS Shishumar (SSK class sub) of IN at Port of Duqm Oman.jpg by Indian Navy, GODL-India

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