Step to register is as same as you register in computer. First one need to www.ksrtc.in and create user name and password. later you can login to www.ksrtc.in/mobile
you have to register with the KSRTC website.A user ID and password will be created for you in the website.When you want to book your ticket using a mobile phone,your phone should be GPRS activated.You need to log into the website www.ksrtc.in/mobile.On logging in,you will find directions to book the tickets.Follow the instructions and you we will get ticket via email.