The calculated distance (air line) between Yelahanka and Nāgamangala is approximately 60 miles respectively 96 kilometers.
By car or train, the actual journey to Nāgamangala is certainly longer, as only the direct route (as the crow flies) between Yelahanka and Nāgamangala has been calculated here.
Air line (approximately)
96 kilometers
52 nautical miles