The passengers of a Kolkata Metro train had to spend nearly two hours inside a tunnel this morning when a south-bound non-AC metro rake developed snag after soon leaving Park Street station. Metro Railway spokesperson R N Mahapatra said that the snag developed at 11.25 am as the train entered the tunnel after leaving Park Street. http://www.ndtv.com/article/cities/kolkata-metro-snag-passengers-stranded-inside-tunnel-for-2-hours-546311