The document provides information on 6 historical stepwells or baolis located in Delhi, India. It describes who built each baoli, around what time period, and the basic location. Some key details include: Agrasen ki Baoli was originally built in the 4th century and later rebuilt in the 14th century. Rajon ki Baoli was commissioned by Daulat Khan in 1506 CE during the Lodi dynasty. Hazrat Nizamuddin Ki Baoli was built in the 14th century by the Sufi saint Hazrat Nizamuddin Auliya.