Question

Which is the bloodiest war which British fought in terms of loss of life in Indian Soil, please share the stats of that war?

Comments

If you see the percentage of people died who participated in the war then we may call first afghan war in which only one British soldier returned and rest 16699 lost the life in the war.

See the https://en.wikipedia.org/wiki/First_Anglo-Afghan_War for more detail of this war.