To the south west of Malik Rajpal tomb is situated a stone walled enclosure of Mubarak Khan, built of lime-stone block in uniform dimensions. It lies on a high plinth and accessed through seven steps. The stone wall itself is about 1.2m thick and is slightly tapering, carrying over it simple curve merlons. The enclosure has two framed door entrances, one each at the southern and eastern sides set in the middle of the length of the perspective wall. The rectangular stone frames of both the doors are raised higher than the height of the wall. The stone door jambs are provided in the middle of the door frames, to reach the enclosure.
The whore wall is plain except two lines of curved decoration, one just below the merlons and another in almost the middle of the length of the wall. An Arabic inscription over the eastern entrance mentions Jamadi-al-Awwal, A.H.895 /1490 AD as the date of construction of the building. It gives the name of Khan al Azam Mian Mubarak Khan, son of Sultan Nizamuddin. There is a second inscription which is fixed over the southern entrance and gives geneology of Sultan Nizamuddin. It also mentions Darya Khan’s victory over Mughals. Some scholars believe that the tomb enclosure was completed by Mubarak Khan son Ahmed whose name is also visible in the inscription, after the death of his father in 1519. The entrances, in addition to the afore-mentioned Arabic inscriptions, are sufficiently decorated. The southern entrance has battlement walls. The battlemented rectangular projection which contains the plain door frame depicts moon-stone at the still. The niches are surrounded by multiple geometric patterns and motifs.
The interior o f the enclosure presents an arched mihrab in the middle of the western wall. The mihrab having lancet-shaped arch is projected on inner side of the wall. Two pilarettes, one on either side, decorates the mihrab with in turn has paneled decoration in its interior as also on its extension on either side. There are several grave in the enclosure. However, one of them that of Darya Khan, stands out for its decoration. It has a marked fluted crown at the head, which could denote the personage of royal lineage. The cenotaph is represented by a box-like rectangular chamber. The coffin legs are seen on two stages. The inscription is engraved horizontally in two rows.