States » SouthPosted at: Feb 21 2020 6:33PM Four IAF Astronauts undergoing training in Russia for Gaganyaan mission : SivanChennai, Feb 21 (UNI) Four IAF astronauts, who were selected after vigorous medical and psychological screening process for the 2022 manned space mission Gaganyaan, were undergoing training in Russia, Please log in to get detailed story.Tags: #Four IAF Astronauts undergoing training in Russia for Gaganyaan mission : Sivan