CST - Hussain Sagar Express Train derailed yesterday around 9.20pm at CST station. The train was about to depart from CST, meanwhile heading towards platform no. 8 from the yard, two coaches of the train got derailed. No casualties were reported in the accident. Departure time of the train was 9.50pm. Commuters had a tough time, since the train left from CST station around 4.00am, informed DRM Rajendra Goyal.