Srinagar, Feb. 22 -- The T-50, world's longest rail tunnel in Jammu and Kashmir, now stands as an engineering marvel and was completed in 14 years and has stringent safety protocols.Prime Minister Narendra Modi yesterday inaugurated the T-50 tunnel, marking a significant milestone in the UdhampurSrinagar-Baramulla Rail Link (USBRL) project.The PM during a rally in Jammu virtually flagged off two electrified trains simultaneously, one from Srinagar to Sangaldan in the down direction and the other from Sangaldan to Srinagar in the up direction.The PM also inaugurated the 48.1 km long Banihal-Khari-Sumber-Sangaldan section."The longest T-50 tunnel, which is 12.77 km long and known as T-50, falls between the Khari Sumber section," the railway...