Varamozhi
The smart way to write correct Malayalam
With Varamozhi, you can type in Manglish and you will see text in real Malayalam. A timely tested and very successful transliteration scheme used by thousands of people around the world to type in Malayalam.
Varamozhi is now a custom Keyboard. Follow instructions in Setup & Usage to enable Keyboard.
Mozhi scheme overview: https://sites.google.com/site/cibu/mozhi
All credit goes to Varamozhi Team for making such a great tool.
Please visit varamozhi.sourceforge.net for more details.