Complex sentence: From 1963-1973, deSouza was the pastor of a small Bengali-speaking community in Karachi, where he was also involved with their repatriation to Bangladesh in 1973, working with the ICRC and UNHCR.
Split into simpler sentences: From 1963-1973, deSouza was the pastor of a small Bengali-speaking community in Karachi. He was also involved with their repatriation to Bangladesh in 1973, working with the ICRC and UNHCR.