Would the British use Indian Army manpower for the invasion of Germany?
Short answerIndian formations would more likely remain in the Middle East against the Ottomans, while a British corps or the forces historically sent to Gallipoli supplied the Baltic landing.
NotesIndian Army units would probably continue shoring up British positions in the Middle East and operations against the Ottoman Empire. Moving them en masse into northern Europe would remove forces from another active strategic requirement. II Corps or the Australian, New Zealand, naval, and other troops historically assembled for Gallipoli are stronger candidates for the landing. That choice links the Baltic counterfactual to a wider redistribution of Allied manpower rather than the creation of an entirely new army. It also leaves the Middle Eastern front supported even though Gallipoli itself does not occur.