The calculated distance (air line) between Bāngarmau and Gursahāiganj is approximately 33 miles respectively 54 kilometers.
By car or train, the actual journey to Gursahāiganj is certainly longer, as only the direct route (as the crow flies) between Bāngarmau and Gursahāiganj has been calculated here.
Air line (approximately)
54 kilometers
29 nautical miles