The calculated distance (air line) between Bhāndāria and Uttar Char Fasson is approximately 45 miles respectively 73 kilometers.
By car or train, the actual journey to Uttar Char Fasson is certainly longer, as only the direct route (as the crow flies) between Bhāndāria and Uttar Char Fasson has been calculated here.
Air line (approximately)
73 kilometers
39 nautical miles