Shura was in the group led by Anat who travelled back to the 20th century to kill Sir Reginald Styles. He was sent away to receive new orders from their base, but was attacked and injured by an Ogron.
Shura was able to kill the Ogron before it killed him, but he was left stranded as his fellow freedom fighters returned to their own time because of a strong Ogron attack.
After the Third Doctor convinced Shura that the delegates had escaped the house and the Daleks (who had travelled back in time to stop the Doctor) were coming, Shura told the Doctor and Jo to get out and, as soon as the Daleks entered the house, sacrificed his life to prevent his timeline from coming to pass. (TV: Day of the Daleks)