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Simultaneously shot in Telugu (as Ghazi ) and Hindi, and dubbed into Tamil for wider reach.

The movie tells the story of a secret mission undertaken by the Indian Navy to attack the Pakistani submarine base in Karachi during the Indo-Pakistani War of 1971. The mission was considered suicidal, but a team of brave Indian sailors, led by Lieutenant Rishi Narain (Rana Daggubati), took on the challenge.

Set against the backdrop of the impending 1971 war, the narrative follows the Indian submarine S21, led by the veteran Captain Ranvijay Singh (Kay Kay Menon) and the rule-abiding Lieutenant Commander Arjun Varma (Rana Daggubati). Their mission is to intercept the PNS Ghazi, which has been dispatched to destroy the INS Vikrant and neutralize India’s naval dominance. The film masterfully portrays the high-stakes "cat and mouse" game played in the depths of the Bay of Bengal, where every ping of the sonar could mean life or death.