The foundation of this temple or subsidiary shrine (II), within the temple complex, suggests that this temple consisted of a mandapa, shallow antarala and a garbhagriha on the plan. Only the base mouldings of the temple survive.
The rear wall of the garbhagriha has a projection depicting a syncretic image. This image depicts Surya, Vishnu and Shiva coming together to form a deity called Hari-Hara Hiranyagarbha. The deity is depicted with three heads and six arms, standing alongside his attendants Dandaka and Pingala. Adorned with a beautiful crown and jewellery, the deity is wearing knee-length boots, which confirms that the frontal face and body represent Surya, who is shown holding flowers in both his hands. While in his upper hands, one can notice sarpa (snakes) which is an attribute of Shiva, and the lower arms grasp a shankha (conch shell) and chakra (discus), symbols associated with Vishnu.
One can notice the Chamunda imagery, on the south wall of the garbhagriha, with an emaciated body, dried and saggy breasts and a sunken belly. She has a jatamukuta and is adorned with ornaments. It is worth noticing that she is wearing a snake as her waist belt and carrying different astras and a bowl. Beneath the bhadra, on the vedibandha, a deity is shown seated on a pedestal, covered in vermilion which shows that the deity is worshipped regularly.
A stone stele is placed near the foundation of the subsidiary shrine (II) on the left side corner near the entrance of the Mahakal shrine. The stele depicts a Shiva Linga and a devotee, who is shown seated and worshiping the Linga. The Linga has a pedestal, yoni bhaga, which holds the Linga. The surface of the stele is quite weathered so the details are not clear.
The surviving foundation of the subsidiary shrine features a flight of steps leading to the Shiva Linga placed at the center. Adjacent to the steps lies a pillar fragment, resembling those found at the southern entrance of the temple premises and at the beginning of the stairs leading to the Mahakal Temple’s mandapa. The pillar has a depiction of a standing human figure. The base of the temple has vegetal outgrowth.
A black stone figure of nandi is placed on one of the broad stairs leading to the garbhagriha. The nandi is shown seated on a raised platform, facing the sanctum where a Shiva Linga is placed at the center of the sanctum. The nandi sculpture has well-defined horns and hump, and it is adorned with a neck belt of bells. On his back, an ornately carved saddle can also be seen.
A fragment of a heavy pillar is placed near the frontal entry point. The fragment is a pillar bracket which depicts four bharavahakas (load bearers) on each side. These bharavahakas are four-armed and adorned with beautiful jewelleries.
The jangha on the south wall of the garbhagriha depicts Chamunda in the bhadra. The six-armed Goddess is shown standing on a human body. She is holding a knife, trishula (trident), and damaru (hourglass-shaped drum) in her right hand. In her left hand, she is holding a bowl and a khatwang (staff with a skull at the top) and in her middle hand, she is touching her lip. She is shown with an emaciated body, dried and saggy breasts and a sunken belly. She has a jatamukuta and is adorned with ornaments. It is worth noticing that she is wearing a snake as her waist belt.
The front entrance (towards the west), possibly the original entry point in earlier times, is now locked with a metal gate which seems to have not been in regular use. There is a flight of steps which leads to the temple complex. Presently to facilitate the needs of the temple and devotees, a water tank is placed on one side of the entrance and the other side has a broken fragment of a pillar bracket.