Avantel has developed a unique, real time and cost effective solution for position determination and location transmission of the rolling stock for indian railways. The real time train information system (RTIS) enables the train informatiuon to be accessed through web or mobile service provider. The solution automatically computes the arrival and depertature of passenger trains and updates the same through the passenger information system or to an enquiry run by the railway operator. The system also helps the railway operator to run the rolling stock control applications automatically .