Talbot Mundy 
Hira Singh 

Hira Singh is the story of a regiment of Sikh cavalry who are captured in battle in Flanders in the early days of World War I. The book narrates the adventures faced by these troops as they escape from captivity and under the leadership of the hero of the story Ranjoor Singh, a Sikh officer, they try to make their way back to India under conditions of great difficulty.