Hyderabad State
Hyderabad state was in south-central India from 1724 until 1948. It was ruled by the hereditary Nizam. During the Partition of British India in 1947, the  Nizam of Hyderabad declared his intentions of not joining either newly formed India or Pakistan. Sensing trouble, India launched Operation Polo which resulted in the absorption of Hyderabad into the Indian Union, in 1948.