Here’s a cool app from Google India Labs called Google Indic Transliteration. Here’s what Google says about the app:

Google Indic Transliteration offers an option for converting Roman characters to the Devanāgarī characters used in Hindi. This lets you type Hindi words phonetically in English script and still have them appear in their correct alphabet. Note that this is not the same as translation — it is the sound of the words that are converted from one alphabet to the other, not their meaning.

When I typed in my name, here’s the Hindi text which came out of the app : वीनू थॉमस

Link: http://www.google.com/transliterate/indic/