After completing 18 months in Ghana, in 1944 Ridley was transferred to India and then Burma, where he studied and treated malnourished former prisoners of war. His biographer David Apple reports Ridley's own words: "In Calcutta, we basically had nothing to do with no assignments – a situation which continued after transfer to Parragan, near Calcutta. Finally, I was transferred to Rangoon, Burma, where life began again.