Gandhak ki Baoli & Rajon Ki Baoli : Baoli means step-wells. There are several step wells in and around Mehrauli. Gandhak Ki Baoli is said to have been built during the reign of Iltutmish (1211-1236). It lies about 400 mtrs south of Adham Khan's tomb in the Mehrauli Archeological park.100 mts apart lies Ranjon Ki Baoli. An inscription states that it was built in 1506 implying it was built during the reign of Sikander Lodi (1489-1517).