The calculated distance (air line) between Pār Naogaon and Nalhāti is approximately 79 miles respectively 127 kilometers.
By car or train, the actual journey to Nalhāti is certainly longer, as only the direct route (as the crow flies) between Pār Naogaon and Nalhāti has been calculated here.
Air line (approximately)
127 kilometers
68 nautical miles