Extension of four train services, speeding up of 13 trains and change in timings of 159 trains at important stations are some of the highlights of the new time table which will come into effect from August 15, said South Central Railway General Manager Vinod Kumar Yadav on Tuesday. Releasing the time table which will also have information about services in the Southern Railway, South Western Railway and Konkan Railway, he said the book will be available for sale at all stations and online.