The calculated distance (air line) between Ludhiāna and Kapūrthala is approximately 43 miles respectively 69 kilometers.
By car or train, the actual journey to Kapūrthala is certainly longer, as only the direct route (as the crow flies) between Ludhiāna and Kapūrthala has been calculated here.
Air line (approximately)
69 kilometers
37 nautical miles