Original: Between 1903 and 1947 this consisted of two separate entities : the Indian Army itself ( made up of Indian regiments originating in India ) , plus the British Army in India , which consisted of units of the British Army ( with their origins in the United Kingdom ) which were on a tour of duty in India .
Simplified: Between 1903 and 1947 the Army of India consisted of two separate parts : the Indian Army and the British Army in India . The first consisted of Indian Army regiments from India , while the second were British Army regiments from the United Kingdom which were sent to India .