Almost temples of West Bengal
were built in a 'hybrid' form of planning, which includes the monumental style of the traditional Muslim building forms and techniques as well as the Deul architecture style of Orissa
. Based on the structure of temple roofs, three distinctive forms are seen in Bengal, which are Chala, Ratna and Dalaan styles.
Dalaan style is characterized by the flat roof. In this style, the temples are built as one-storied square or rectangular building. The walls are lined with molded baked clay panels.