 At the time, he was seen as a model of Britishness, leading a Western lifestyle and wearing impeccably tailored English suits.All of that changed after the Jallianwala Bagh massacre in 1919, when he was appointed by the Indian National Congress as chairman of an independent fact-finding committee.He cross-examined hundreds of eyewitnesses and victims of the atrocities committed by Reginald Dyer, reacting with "nausea and revulsion."