Coins issued by most of the Rajput kings of medieval India were same in pattern i.e. included the name of the Ruler on one side and the picture of Goddess Laxmi on the other side. The text of the coins was written in Devnagiri script.
The important characteristics of the Vijayanagar administration was the Amara-Nayaka system. The top-grade officers of the army were known as Nayaks or Palaiyagars or Poligars. These officers were granted land in lieu of their services.
Al Biruni was made court astrologer in Ghazni and he accompanied with Mahmud on his invasions on India. He lived for several years here and is considered to be first Indologist.
Each sarkar of Sher Shah Suri was divided into several parganas. Shiqdar (military officer), Amil (land revenue), Fotedar (treasurer), and Karkuns (accountants) were the officers in charge of the administration of each pargana.