The calculated distance (air line) between Daska Kalan and Derā Nānak is approximately 44 miles respectively 71 kilometers.
By car or train, the actual journey to Derā Nānak is certainly longer, as only the direct route (as the crow flies) between Daska Kalan and Derā Nānak has been calculated here.
Air line (approximately)
71 kilometers
38 nautical miles