Mirzanagar Hammamkhana is situated at Mirzanagar village of Keshobpur Upazilla. In 1649, the then Fauzdar [administrator] of Jashore, Mirza Safsi Khan, built this hammamkhana. Modeled on the Mughal Architectural style, this building has for domes. Hammam Khana located at the village Mirzanagar of Trimohini Union of Keshobpur Upazila. Trimohini is a place where a river created two branches, one is Kopotakkho river and another one is Boribhodra river. Both of the rivers are moribund in condition nowadays. A Fouzdar named Mirza Safsi Khan lived here. Actually, he created that fort-like mansion along with this Hammam Khana. The village name Mirzanagar is taken after his name. He was the son of the brother-in-law of Shah Sujaa Subedar of Bengal.
6 km from Keshabpur. To the west is the confluence of the Kapotakshi and Buribhadra rivers at Trimohini.