India is set to commission its third nuclear-powered submarine, 'INS Aridaman', on Friday, reports said. Defence Minister Rajnath Singh hinted at its launch on X, saying, "It's not words but power, 'Aridaman'!" INS Aridaman is an advanced version of the Arihant-class submarines, following earlier inductions such as INS Arighaat in August 2024 and INS Arihant in 2016.