This a trick.
Google provides a demo of Google SMS at following website:
This demo works with real data.
We can type real PNR and hit send button.
In the mobile image right hand side of the website will show realtime results of our PNR status.
No need to send a message from our own mobile. We can save 2 Rs.
In the case we can’t access internet (while traveling) then send sms “pnr <pnr_number" to 9773300000. Cost per sms is 50 paise for Mumbai mobiles and 2 Rs for other states as the server is located in mumbai.
many other searches we can do through mobile phone. for that :
Save 9-77-33-00000 on your phonebook for quick and easy access to Google SMS.