Beanibazar thana was established in 1938 and was turned into an upazila in 1983. The upazila consists of 11 union parishads, 145 mouzas and 176 villages.
Basudeva Temole and Basudeva image (made of black basalt) at Supatala mouza, copperplate inscription and an elephant embossed stamp of the Kamarupa king Vaskar Barma, remnants of the palace of Tengra.