Ghazi Attack Isaidub __exclusive__

The Ghazi attack refers to the 1971 sinking of the Pakistani submarine PNS Ghazi near Visakhapatnam (Vizag) during the Indo-Pakistani War of 1971. "Isaidub" appears to be a coined or combined term; for this article I assume you want a clear, concise historical account and analysis under the title "Ghazi Attack: Isaidub" — treating "Isaidub" as the article's unique subtitle or campaign name.