ISRO Gaganyaan Mission, Indian Astronaut Names: The names of the astronauts for Gaganyaan mission have been announced by Prime Minister Narendra Modi on Tuesday. PM Modi announced the names of four astronauts who are training for the country's first human space flight mission - 'Gaganyaan'. Prime Minister reviewed the progress of the Gaganyaan mission and revealed the names of the four astronauts who will go to space under the Gaganyaan mission and make India proud.