Bijay Mandal is a building with a layout plan of 74 m (242.8 ft)x82 m (269.0 ft) dimensions, with a well proportioned square dome. It cannot be categorized as a tower or a palace. It is a typical Toghlaqi structure with an octagonal plan built in rubble masonry (with massive battered sloping walls on east, west and southern directions) on a raised platform with door ways in each cardinal direction.
The purpose of this unusual structure and the ruins of the Sar Dara Palace was described by Ibn Battuta as the palace with multiple chambers and the large public audience hall as the famed Hazar Sutan Palace. It was also interpreted as serving as an observation tower to monitor the activities of his troops. The ambience of the place presented it as place to relax and enjoy the scenic view of the environs.
The inclined path around the monument was a walkway leading to the apartments of the Sultan. Two large openings in the living rooms of the floor were inferred as leading to the vaults or the treasury. On the level platform, outside the building in front of the apartment rooms, small holes equally spaced are seen, which have been inferred to be holes used to fix wooden pillars to hold a temporary shamiana (pavilion) or cover. The process of ushering people into the presence of the Sultan was devious and formal involving entry through semi–public places to private chambers to the audience hall. The debate on whether the Hazara Sutan Palace cited as existing during Allauddin Khilji reign and also during Togluq’s time are one and the same palace, has not been conclusive. A plausible hypothesis is that the stone hall of the palace was built by Allauddin Khilji while the tower adjoining the stone buildings was surely built by Mohammed bin Tughluq.