The calculated distance (air line) between Bithūr and Bhagwantnagar is approximately 40 miles respectively 64 kilometers.
By car or train, the actual journey to Bhagwantnagar is certainly longer, as only the direct route (as the crow flies) between Bithūr and Bhagwantnagar has been calculated here.
Air line (approximately)
64 kilometers
35 nautical miles