CORPORATE PRESS RELEASES (INDIA) referral newsdesk, May 31 2016 SOURCE ::  http://www.bbc.com/news/world-europe-36423250   The Gotthard tunnel runs 2.3 km under the mountain at its deepest point The world's longest and deepest rail tunnel is to be officially opened in Switzerland, after almost two decades of construction work. The 57km (35-mile) twin-bore Gotthard base tunnel will provide a high-speed rail link under the Swiss Alps between northern and southern Europe. Switzerland says it will revolutionise European ...