What happened?
A covert Chinese research vessel operating just 120 nautical miles from Indian maritime zones in the Bay of Bengal was detected by French intelligence firm Unseenlabs, during a 16-day RF satellite surveillance mission that concluded as of July 11, 2025. Using radio frequency satellite surveillance, the firm tracked the vessel despite it switching off its Automatic Identification System (AIS)—a standard tactic to evade detection. The vessel is believed to have been conducting underwater reconnaissance, including seafloor mapping and acoustic surveys.
Why it matters to India
The incident heightens security concerns amid rising Chinese activity in the Indian Ocean Region. Though the vessel stayed outside India’s territorial waters, its proximity triggered alerts from Indian defence authorities. This follows a series of similar sightings since 2024 involving Chinese ships near sensitive military zones. The Indian Navy and Coast Guard are reviewing protocols and may pursue diplomatic channels. With strategic implications for anti-submarine warfare and maritime dominance, India is ramping up surveillance infrastructure to protect its EEZ and maintain regional deterrence.