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NOSI – Naval Open Source Intelligence™

Operational naval news, curated from open source intelligence, intended to serve as a source of continuing naval education. By Michael P. D'Alessandro M.D.

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India Inducts Third SSBN, Fourth Nilgiri-class Frigate

Posted on April 4, 2026 by Naval Open Source Intelligence (NOSI)

Naval News – India’s third Arihant-class SSBN INS Aridhaman and fourth Nilgiri-class frigate INS Taragiri were commissioned on April 3 at Visakhapatnam by defence minister Rajnath Singh.

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