I didn't know that GT and TN had RSA... Thanks for the info :)
Now a days IR is not at all maintaining it's standards. Once know for it's different liveries for different type trains, now the most prestigious Rajdhani exp and an LHB AC exp looks alike.... Shame on IR. These are the small thing which makes a great difference. I really think IR should go back to old schools to get the basics back on track. Maintaining different livery for different types of trains, changing the name plate of the train if it has RSA are very basic needs.