Saves your time in Indianrail
1) This saves the journey search details(date of journey, station names) in the indianrail.gov.in and also solves the captcha for you. It is free to use.
2) It also saves PNR searched so you don't need to type them again and again
It stores your journey date and station codes and PNR code in your browser which you can delete by uninstalling this extension and clearing browser history. It does not transfer any data out of your computer.