Google offers excellent non-latin character input software which works on transliteration rather than explicit keyboards which is very hard to do specially when the US keyboard layout had virtually overtaken the computer industry. Google Input Tools (GIT) installer from the official site is online, i.e. it downloads a small stub and later depending upon the configuration and setting will download the larger installer. If someone needs an offline installer for GIT, you can download it from the following links, Hindi (Devnagri) : http://dl.google.com/transliteration-ime/1.0.4.0/googlehindiinputsetup.exe Malayalam (Malayalam) : http://dl.google.com/transliteration-ime/1.0.4.0/googlemalayalaminputsetup.exe Sanskrit (Devnagri) : http://dl.google.com/transliteration-ime/1.0.4.0/googlesanskritinputsetup.exe Basically, just replace the from the url and enter your desired language name.
Universe from my perspective..