Explanation:

Rajputana, meaning "Land of the Rajputs", was a region in India that included mainly the present-day Indian state of Rajasthan, as well as parts of Madhya Pradesh and Gujarat, and some adjoining areas of Sindh in modern-day southern Pakistan. The main settlements were to the west of the Aravalli Hills, and was known as Samarkand, the earlier form of Registan, before it came to be known as Rajputana, early in the Medieval Period. The name was later adopted by British government as the Rajputana Agency for its dependencies in the region of the present-day Indian state of Rajasthan. The Rajputana Agency included 18 princely states, two chiefships and the British district of Ajmer-Merwara. This British official term remained until its replacement by "Rajasthan" in the constitution of 1949.