Storming of Delhi. Coloured lithograph from 'The Campaign in India 1857-58 from drawings made during the eventful period of the Great Mutiny, illustrating the military operations before Delhi and its neighbourhood'. A series of 26 coloured lithographs by W Simpson, E Walker and others, after G F Atkinson, published by Day andSon, 1857-1858. Associated with the Indian Mutiny (1857-1859). By 14 September 1857 the British had about 9,000 men before Delhi. A third were British while the rest were Sikhs, Punjabis and Gurkhas. The assault began when artillery breached the city walls and sappers blew in the Kashmir Gate. It took a week of vicious street fighting before Delhi was finally taken. The British and their Indian allies then ransacked the city in an orgy of looting and killing. Delhi?s capture was key to British suppression of the Indian Mutiny (1857-1859).