The Udhampur-Srinagar-Baramulla Rail Link (USBRL) project, described as the most challenging post-independence railway project in India, involves tunnelling through the young Himalayas. Of the total 272 km, 161 km has been commissioned. The Katra-Banihal section, with 87% in tunnels, includes the longest transportation railway tunnel (T-49) at 12.77 km.
