The region of Bikaner, stretching across north-western state of Rajasthan in India, was earlier known as Jangladesh. It included the present-day districts of Bikaner, Churu, Ganganagar, and Hanumangarh. It is bounded on the south by Marwar and Jaisalmer regions, on the east by Ajmer-Merwara region.

Bikaner State was a princely state in the Rajputana from 1465 to 1947. The founder of the state, Rao Bika, was the eldest son of Rao Jodha, ruler of Jodhpur. Rao Bika chose to build his own kingdom instead of inheriting his father's. Bika defeated the Jat clans of Jangladesh along with his uncle Rao Kandhal and his adviser Vikramji Rajpurohit and founded his own kingdom. Its capital was the city of Bikaner in the northern area of present-day Rajasthan State in India. Karni Mata has been designated as the kuldevi of the royal family of Bikaner.