A comprehensive fact-check analysis confirms that a tweet shared by @TheLegateIN on X, originally posted by @abhish_31, is false propaganda. The post claimed that a Pakistan Navy Hangor-class submarine in the Bay of Bengal (BoB) would significantly erode India's sea control. Investigation reveals the claim originates from India-linked propaganda accounts, not from any credible military or intelligence source. No verified evidence exists of a Pakistani submarine operating in the BoB; Pakistan's conventional submarine fleet is mostly confined to the Arabian Sea due to geographical constraints and lack of blue-water capability. Furthermore, the Indian Navy maintains robust anti-submarine warfare assets and maritime domain awareness in the BoB, making such a scenario highly unlikely. My opinion: This disinformation is a deliberate tactic to exaggerate Pakistan's naval threat and undermine public confidence in India's maritime security. It serves no purpose other than spreading unnecessary fear and false narratives.