The 1861 Census had revealed that the English population in India was 125,945. Of these only about 41,862 were civilians as compared with about 84,083 European officers and men of the Army. In 1880, the standing Indian Army consisted of 66,000 British soldiers, 130,000 Natives, and 350,000 soldiers in the princely armies.
The population of the territory that became the British Raj was 100 million by 1600 and remained nearly stationary until the 19th century. The population of the Raj reached 255 million according to the first census taken in 1881 of India.
Studies of India’s population since 1881 have focused on such topics as total population, birth and death rates, growth rates, geographic distribution, literacy, the rural and urban divide, cities of a million, and the three cities with populations over eight million: Delhi, Greater Bombay, and Calcutta.
By the end of 1919, 1.5 million Indians had served in the armed services in either combatant or non-combatant roles, and India had provided £146 million in revenue for the war.
Gillespie Family Histories of India
Sir Major General Robert Rollo Gillespie 1766-1814