The calculated distance (air line) between Ludhiāna and Charkhi Dādri is approximately 162 miles respectively 261 kilometers.
By car or train, the actual journey to Charkhi Dādri is certainly longer, as only the direct route (as the crow flies) between Ludhiāna and Charkhi Dādri has been calculated here.
Air line (approximately)
261 kilometers
141 nautical miles