Kos Minars or distance pillars were raised to mark the distance travelled; the minars (pillars) were placed at intervals of a kos (a distance of approximately 4.17 km). These are plastered brick structures standing on square platform. Each minar soars from a tapering octagonal base which is separated from the upper circulatory portion by a molding. This kos minar surviving along the Agra-Lahore highway, in Faridabad was possibly erected during the 17th century when Mughal rulers vastly improved this important route. Although not individually especially impressive, they become so when we consider the large territory they once marked.