According to old tradition Chaubis Khamba constituted the majestic entrance gate of Mahakala-Vana. Remains of the boundary-wall are also in existence near this gate. Architectural design, of the twenty four ornate columns, belongs to the ninth or tenth century AD.
Two images of goddesses are installed one each on the either side of the gate with the names inscribed. On the footstools are Mahamaya and Mahalaya. Looking at the graceful forms of these guardian-deities of the grand entrance structure, one can imagine the dimensions of the boundary-wall of the traditionally known Mahakala-vana, which is not covered under thick inhabitation.