On March 13, 1940, Michael O’Dwyer was scheduled to address a joint meeting of the East India Association and the Central Asian Society at Caxton Hall, London.

Singh hid a pistol inside the book, which had cut-out ad-shaped ad pages.

The wool was purchased by a soldier in a bar. He then entered the hall and found an open seat.

At the end of the meeting, Singh shot O’Dwyer twice while on his way to the booth.

One of the bullets passed through his heart and right lung, killing him instantly, and others injured in the incident included Sir Louis Dane, Lawrence Dundas,

the second Marquess of Zetland, and Charles Cochrane-Baillie, Baron Lamington II. Singh was arrested shortly after the shooting.