Kurumbera Fort, Protected monument in Gaganeshwar, West Bengal, India

Kurumbera Fort stands in Gaganeshwar village, southeast of Keshiari. Its rectangular stone building, of rough brown and reddish masonry on a low plinth, has three hemispherical domes on a flat roof and a low parapet along the roofline. The front wall holds three arched recesses fitted with dark grid screens, and a pillared corridor rings a large courtyard with a sacrificial altar at its centre.

The structure was built between 1438 and 1469 under the Suryavamsi Gajapati dynasty of Odisha. After Mughal forces arrived in the region, architectural elements reflecting their style were gradually integrated into the original design.

An inscription behind the domed structure records the site's use, and a stone inscription names Mohammed Tahir as the builder of structures added under Aurangzeb. The altar stands at the western end, so a gathered crowd would face one direction, as in a mosque; no written evidence or legend confirms such practice.

Gaganeshwar village has no bus service. From Kharagpur take the state highway about 27 km to Keshiari, turn left towards Belda and reach the Kukai junction about 2 km on; from Kukai a concrete road runs about 2 km to the village. Arrange your own vehicle for the last stretch.

An inscription about the structure's use stands directly behind the domed building, and the altar sits at the western end so a crowd would face one direction, as in a mosque; no written evidence or legend explains this arrangement.