when was the national ization of indian railway done
Railway nationalization Indian Railways has been state owned since 1951.
Mountain railways of India Three of these railways, Darjeeling Himalayan Railway, Nilgiri Mountain Railway, and Kalka–Shimla Railway have been collectively designated as a UNESCO World Heritage Site, also named as "Mountain Railways of India", while the fourth railway, Matheran Hill Railway is in tentative list of UNESCO World Heritage Site.[1] These all are narrow-gauge railways. The Nilgiri Mountain Railway is also, the only rack railway in India.