Agrasen ki Baoli, designated a protected monument by the Archaeological Survey of India (ASI) under the Ancient Monuments and Archaeological Sites and Remains Act of 1958, is a 60-meter long and 15-meter wide historical step well on Hailey Road,near Connaught Place, Jantar Mantar in New Delhi, India. Although there are no known historical records to prove who built Agrasen ki Baoli, it was originally built by the legendary king Agrasen, and the present architecture hints at it being rebuilt in the 14th century during the Tughlag period of Delhi Sultanate.