Ballal Dhipi

Ballal Dhipi is an archaeological mound at Bamunpukur in Nadia district, on the Hooghly's eastern flood plain a few kilometres east of Nabadwip and close to Mayapur. It is named after the Sena king Ballala Sena, who reigned from 1160 to 1179. A 30 ft structure of solid brick spreads over 1,300 sq ft, laid on a floor of lime and sand, with remains going back to the 12th century and earlier.

Excavations by the ASI's Kolkata Circle in 1982–88 uncovered large brick structures, shrines along the sides and a massive central building within an enclosure, along with antiquities of roughly the 10th to 12th centuries. Historians disagree about its origin. The finds hint at a Buddhist link, and it may be the ruin of a stupa or vihara, with parallels at Vikramshila in Bihar and Shompur in Rajshahi, Bangladesh; it may instead have been part of the Sena capital. The ASI has split the protected site in two: the mound itself and a ruined fort.