Using this option you can chat with your buddies in Gtalk within Gmail in your local Indic language.This add-on uses Google Indic transliteration service to transliterate.If you want to learn more about Google Indic transliteration service go  click here for help.

Whenever you click any textboxes in Firefox browser you will get and option to turn transliteration on and off. You can also change your transliteration language preference from there itself. In this screenshot i have typed a welcome message to my buddy in Indic language Tamil.

If you want to enable Google Indic transliteration in Gmail you can do it without need of an add-on. Go to setting in your Gmail account and under general tab change your language preferences. Enable message translation if you need to convert mails from other languages to English and enable transliteration to transliterate in Indic languages. While transliteration will only work in IE and Firefox.

After enable the transliteration you will get and option to enable and disable the transliteration while composing mail in Gmail.

Happy mailing and chatting in your own language. Let me know what you think of this service. Do comment or mail me if you have anything that you can share with me.