Transliteration/Typing at it's easiest best - in MS Word, Excel, Whatsapp, Facebook, Twitter, Photoshop, InDesign, PageMaker, etc., - in multiple languages - Tamil, English, Hindi, Arabic, Sanskrit, Telugu, Kannada, Malayalam, Bengali, etc.Multiple keyboards- Phonetic, Inscript, etc. ...
which is standardized by the Indian Government. (InScript layout can reduce as much as 20% keystrokes when compared to phonetic methods.) Here is a screen shot of the Kinige Telugu Typing Tutor: