Sher Shah (Farid Khan) was appointed by his father, Hasan Khan Sur, as the manager of his jagir, which included Sasaram (Sahasram) and Khawaspur in Bihar. Farid Khan spent several years managing this estate, implementing reforms that ensured fair revenue collection and prevented peasant exploitation. This practical, hands-on administrative experience gained at the grassroots level in Sasaram was instrumental. It allowed him to later develop the highly efficient land revenue and law and order systems of his short-lived Sur Empire.