Idrakpur Fort is situated at Munshiganj proper, on the west bank of the canal running through the town, and in the eastern vicinity of Deobogh village. This water fort was built on the bank of the river Ichhamati, (the river has now dried up), probably by the Mughal Subahdar mir jumla in about 1660 AD. It was intended to counter the advances of the magh and portuguese raiders by water. The surroundings of the fort are now filled with earth and in some places the silt has risen up to the level of the parapet.

The fort, quadrangular in size, consists of two main parts: i) the wider open area surrounded by curtain walls crowned by machicolated merlons with engaged rounded corner bastions pierced by musketry, and ii) the smaller area containing a round drum of huge dimension surrounded by another series of similar curtain walls. An approach to the drum is provided from the bigger court. A small magazine exists just at the foot of the drum. On the top of the drum is the residential quarters of the Deputy Commissioner; the fort itself serves as a jail now. [Muazzam Hussin Khan]