The calculated distance (air line) between Ūncha Sawāna and Najafgarh is approximately 70 miles respectively 113 kilometers.
By car or train, the actual journey to Najafgarh is certainly longer, as only the direct route (as the crow flies) between Ūncha Sawāna and Najafgarh has been calculated here.
Air line (approximately)
113 kilometers
61 nautical miles