The calculated distance (air line) between Baniachang and Bhairab Bāzār is approximately 40 miles respectively 65 kilometers.
By car or train, the actual journey to Bhairab Bāzār is certainly longer, as only the direct route (as the crow flies) between Baniachang and Bhairab Bāzār has been calculated here.
Air line (approximately)
65 kilometers
35 nautical miles