The mosque was built in Atish Khan Mahalla by Khan Mohammad Mridha Mosque under the instruction of Qadi Ibadullah in 1706 CE. The mosque rises above its surroundings because the tahkhana or underground rooms of the mosque are above grade. The roof of the tahkhana forms the platform on which the mosque is situated. Khan Mohammod Mridha mosque The spacious prayer place before the main mosque is open in all directions allowing air to flow and keep the Musullis cool.
A madrasa was also built north-west of the mosque building. Its founding teacher, Mawlana Asadullah (d. 1709), taught fiqh, philosophy and logic in the Arabic and Persian languages to the pupils, and was funded by the Nawabs of Bengal.
The platform is 16′-6″ above the ground level. The tahkhana comprises vaulted rooms for living purposes. The mosque is accessed from the east, up a flight of twenty-five steps. Area wise, the mosque occupies only a small portion of the platform.The prayer hall is a rectangular structure measuring 48′ x 24′ and is capped by three domes, the central being the larger one. The smaller sizes of the side domes are achieved by using intermediary pendentives. The corners minarets are short and slender, rising just above the parapet and are capped by ribbed copulas. The annex to the north of the mosque serves as a madrasa or religious school and has a hujra or arcaded hall that is used for travelers and visitors. The facade of the mosque is decorated with paneling and ornamental merlons along the parapet. The entrances to the prayer hall are framed by multi-cusped arches and engaged columns on either side.