The Mahakal Temple mandapa (pillared hall) has a depiction of dikapalas (deities for cardinal directions). Kuber is one of them who is portrayed with four arms. He holds a money bag in his upper hand, a kamandalu (water pot) in his lower left hand, and a gada (mace) in his lower right hand. At the base of the niche, Kubera’s Mount Airavat is carved.
The details of the vedibandha (basal mouldings) of the southern garbhagriha (sanctum sanctorum) of the Mahakal Temple show that it consists of khura (hoof), kapotapalika (cyma recta), kumbha (pot), and kalasha (pitcher) mouldings. The stambhas (buttresses) filling the space between bhadras (central offset) of the jangha (wall) is also ornamented.
The mandapa (pillared hall) leads to the antarala (vestibule or antechamber), a shallow passage distinguished by pillars along its sides. From there, one proceeds to the garbhagriha (sanctum sanctorum) of the Undeshwar Temple, featuring a meticulously carved doorframe. This doorframe exhibits a multi-shakha (vertical band or architrave) design, with each shakha adorned with various floral patterns, naga (serpant) figures and stambha (buttress). At the lower part of the doorframe, there are four female figures, two of whom hold kalashas (pitchers) while the other two hold chauris (fly whisks). Following them are four-armed dvarapalas (door guardians), each depicted with their respective attributes. Lastly, there is a figure of Kubera holding a money bag. Above the lalatabimba (lintels) on the doorframe's entablature, Nataraja is positioned at the center, flanked by seated goddesses, with Brahma and Vishnu depicted at the ends.
To the east, there is the main garbhagriha (sanctum sanctorum) accessible via the antarala (vestibule or antechamber). The dvarashakha (doorframe) of this sanctum is crafted by featuring multiple sections and adorned with sculptures of davarapalas (door guardians) and women holding kalashas (pitchers). Although the lalatabimba (lintel) of the doorframe displays a seated figure, its condition is not well preserved. Positioned above the lintel, the entablature showcases Natesha at the center.
The garbhagriha (sanctum sanctorum) of the Undeshwar Temple is a compact square chamber positioned 2.4 meters below the floor level of the mandapa (pillared hall). Access to the garbhagriha is facilitated by a flight of steps. Positioned at the center of the garbhagriha is a Shiva linga (aniconic representation of Shiva). The walls of the garbhagriha are unadorned and lack any ornamentation or figurative representation.
On the steps and platform of the Mandakini Kund, several inscriptions are discovered in various states of preservation. These inscriptions are written in the Sanskrit language using the Devanagari script. A thorough examination of these inscriptions reveals valuable information, including the name of the temple, Mahakal, and the designation of the reservoir as Mandakini. Additionally, they provide details such as the date of the devotees' visit and their community affiliation. The inscriptions mention the worshipers' practice of visiting the Mahakal Temple and bathing in the Mandakini Kund. Dating from the 13th to the 15th centuries CE, some of these inscriptions specifically mention members of the Kayastha Mathur community.