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  • To avoid communication blackouts that led to 20 fishermen going missing in the aftermath of Cyclone Okchi in 2017, a slew of government departments, research agencies and private companies have developed GEMINI.
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  • Details:
  • GEMINI is a portable receiver linked to ISRO-satellites, that is “fail-proof” and warn fishermen of danger.
  • The Indian National Centre for Ocean Information Services (INCOIS), a Hyderabad institute collaborated with Accord, a private company, to develop a box-shaped receiver.
  • It has an antenna and in-built battery that can last three to four days, according to a brochure describing the device.
  • GEMINI works on GAGAN developed by ISRO and the Airports Authority of India and is an India-made global positioning system and relies on the positioning system by ISRO’s GSAT satellites.


  • The device is developed for effective dissemination of emergency information and communication on Ocean States Forecast and mapping of Potential Fishing Zones (PFZ) to fishermen.
  • Ocean States Forecast provides the accurate state of the ocean that includes the forecasts related to winds, waves, ocean currents, water temperature, etc.
  • PFZ provide information about the probable locations of fish aggregation in the seas to the fishermen, while
  • GEMINI is a portable receiver that is linked to ISRO-satellites. With this device, the fishermen outside the signal range of their phone companies (i.e. 10-12 km) can also access warnings and alerts, as the device can send signals up to 300 nautical miles.
  • It will facilitate satellite-based communication that will be highly useful while dealing with cyclones, high waves, and tsunamis.


Indian National Centre for Ocean Information Services (INCOIS)

  • INCOIS is an autonomous organization under the Ministry of Earth Sciences (MoES).
  • It is located in Hyderabad & was established in 1999 under the MoES and is a unit of the Earth System Science Organization (ESSO).
  • It is mandated to provide the best possible ocean information and advisory services to society, industry, government agencies and the scientific community through sustained ocean observations and constant improvement through systematic and focused research.
June 2024