You’ve seen Gmail in Hindi but now this popular email program from Google is available in all major languages of India including اردو (Urdu) , मराठी (Marathi), हिन्दी (Hindi), বাংলা (Bangla), ગુજરાતી (Gujarati), ଓଡିଆ (Oriya), தமிழ் (Tamil), తెలుగు (Telugu), ಕನ್ನಡ (Kannada) and മലയാളം (Malayalam).
I think this would cover 90% of the 1 billion strong population of India.
To switch to a different language in Gmail, go to the Settings tab and selection a different languages from the Gmail display language drop down. Don’t forget to save your changes.