- During the colonial period, British officials and soldiers in India faced health challenges due to the tropical climate and diseases prevalent in the plains. - Hill stations, with their cooler climates, were initially developed as sanatoria and health resorts where personnel could recuperate and escape the unhealthy conditions of the plains during the summer months. - While they later evolved to serve various administrative, military, and recreational purposes, the primary initial purpose was related to health and well-being (sanatoria).