Rasmancha with its unique architectural manifestation built by Bir Hamber in 1600 AD (416 years ago) in the city of Bishnupur in Bankura district in the state of West Bengal. The architectural style is a Pyramidal Bengali Style Chala Architecture. The temple stands on a 1.6 meters high Plinth, Square in plan, made of Laterite soil.
The façade of the structure is made of sun-dried bricks and covered with terra-cotta square tiles with sides measuring 200 millimeter. Flooring is made using the same terra-cotta tiles.
The internal chamber of the shrine is enclosed with three consecutive circumambulatory galleries and topped by a colossal pyramidal crown.
The Arches of which is decorated with terracotta lotus motif which enclose the sanctum of the shrine.
Each side of Rasmancha measures 24.5 meters long and rises to a height of 11 meters to reach a stage roof above.
There are exactly 11 columns on each side with a square base, each side measures 1 meter. There are exactly 10 arched doors on each side, each 1.3 meters wide and 1.9 meters high. There are three circumambulatory galleries surrounding the central chamber, 1.3 meters wide. The pyramidal super-structure is constructed laying bricks with clay as motar.
The primary reason behind the construction of this monument was the celebration of the Ras Festival.