Udham Singh, Indian activist (born 1899)

Udham Singh was an Indian revolutionary belonging to Ghadar Party and HSRA, best known for assassinating Michael O'Dwyer, the former lieutenant governor of the Punjab in India, on 13 March 1940. The assassination was done in revenge for the Jallianwala Bagh massacre in Amritsar in 1919, for which O'Dwyer was responsible and of which Singh himself was a survivor. Singh was subsequently tried and convicted of murder and hanged in July 1940. While in custody, he used the name Ram Mohammad Singh Azad, which represents the three major religions in India and his anti-colonial sentiment.

July 31 is the 212th day of the year in the Gregorian calendar; 153 days remain until the end of the year.