In 1840, all the pioneer companies were converted into Sappers &amp; Miners and the 'Engineer Corps' renamed as the "Bombay Sappers &amp; Miners". The Corps took part in many operations both in India and abroad, the long list of battle and theatre honours earned giving an idea of the sterling service rendered by the Corps both in peace and war. In the 19th century and prior to World War I, the Bombay Sappers served in Arabia, Persia, Abyssinia, China, Somaliland; in India fought in the Mysore, Maratha and Anglo-Sikh Wars; fought in the aftermath of the "Mutiny" in Mhow, Jhansi, Saugor and Kathiawar and many times over in the Punjab, North West Frontier Province and Afghanistan.