South Central Railway has issued a passenger advisory ahead of Cyclone Arnab, warning of possible train cancellations, diversions and rescheduling. Officials reviewed railway safety measures, while accident relief trains and medical equipment have been kept ready at Kazipet and Dornakal. Hyderabad: The South Central Railway (SCR) has issued a travel advisory for passengers in view of Cyclone Arnab, with heavy rainfall and a red alert expected in several Telangana districts on October.