KANPUR/VARANASI/LUCKNOW, May 24 -- Passengers travelling in Shramik Special trains created a ruckus in Unnao, Pt Deendayal Upadhyay Junction (previously Mughalsarai) and Faizabad railway station in separate incidents on Saturday over scarcity of food and water in one instance, a five-hour unscheduled stoppage in the second and dry taps in the third, officials said....