INS Shankush (S45)
Introduction '''INS ''Shankush'' (S45)''' (''Ray of Light'') is a  diesel-electric submarine of the Indian Navy.
Mid Life Upgrade Indian Navy awarded a contract for mid-life upgrade and certification of Shankush on 30 June 2023, 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 2026 and the total cost associated is .
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