A Pakistan Railways train from Rawalpindi to Lahore, passing through the Korang Tunnel, The tunnel is part of an integrated infrastructure, located adjacent to the Korang Bridge, which spans the Korang River – originating from the Murree Hills constructed by British engineers in 1914, the short 50 meter long tunnel is marked by engineering difficulties, owing to cutting through hard rock, Korang Tunnel is an active segment of the Karachi–Peshawar Railway Line, (ML-1). The Lahore-Rawalpindi section constitutes a crucial part of the extensive network of Pakistan Railways spanning 7,789 kilometers