Short answers, pulled from the story.
The Natal Indian Ambulance Corps served as stretcher bearers for the British Empire during the Boer War. The unit focused on saving lives among Africans and Indians while local Indian communities covered all expenses.
The Battle of Spion Kop took place between the 23rd and the 24th of January. Indian stretcher bearers moved directly into the frontline during that engagement to carry injured soldiers away from the fighting.
Thirty-four Indian leaders received the Queen's South Africa Medal for their service. Mahatma Gandhi was bestowed with the Kaiser-i-Hind medal by the British government for his medical work.
Mahatma Gandhi served as sergeant major of the Indian Stretcher Bearer Corps during the Bambatha Rebellion which broke out in Natal during 1906. Twenty members including Gandhi later received the Natal Native Rebellion Medal.