Then you're fine. Take it to India and put your chip in it and you'll be fine. You may have to play with the connection settings under Settings> Wireless & Networks. But from what I understand you will not have to switch it... but if you do then that's where to look.
Good luck and let us know how it goes once you get it going. Also if you have to take some extra steps let us know about it too. You should be able to log in from India and do it. No need to wait till you come back state side.
Mountain Dew makes me happy.
If I've helped you, a thank you would be cool.