The Corps left Calcutta 250 strong in February 1900 to take part in the Second Boer War, under the command of Field Marshal Lord Roberts. The Corps took part in the march to Bloemfontein, the occupation of Johannesburg and Pretoria, the pursuit of de Wet, and the Barberton & De Kaap campaigns against the Boers. Lord Curzon, Viceroy and Governor General of India placed a memorial tablet in St.Paul's Cathedral, Calcutta. It lists those of the Corps who died in action and in sickness.