A screenshot of a video showing the four selected Gaganyaan astronauts. From left: Gp Capt Prashanth Balakrishnan Nair, Gp Capt Ajit Krishnan, Gp Capt Angad Pratap, Wg Cdr Shubhanshu Shukla.Thiruvananthapuram/Bangalore/New Delhi: The prime minister, ...