This forum does include a Hindi section, you can select it by changing the site language. As far as the browser, Hindi is listed as an available interface language, but as I can't read it I can't tell if it is displayed properly - other than that they do appear to be using the same language the website uses, which is not some western European, Cyrillic or similar text, and also not boxes (here on Windows 7). And of course, neither setting has anything to do with web pages - well, other than this one.