The Kos Minar at Sarai Amanat Khan (Attari Road), Tarn Taran district of Punjab, is a Mughal-era distance marker designed to indicate distances along important routes. Built between 1600 and 1699 CE with lakhori bricks set in lime mortar, this octagonal, pillared monument features a circular upper section. Located near the caravansarai (rest house) Sarai Amanat Khan, it likely served as a marker to signal the presence of a nearby halting station. The Archaeological Survey of India (Chandigarh Circle) now protects the monument.