The calculated distance (air line) between Tirunelveli and Neyyāttinkara is approximately 47 miles respectively 75 kilometers.
By car or train, the actual journey to Neyyāttinkara is certainly longer, as only the direct route (as the crow flies) between Tirunelveli and Neyyāttinkara has been calculated here.
Air line (approximately)
75 kilometers
41 nautical miles