Recently, I tried Google Labs’ Indic Transliteration for converting English to Hindi. The result was good. The tool also supports Tamil, Telugu, Malalayam and Kannada.
Input Text : English
hai pal pal badalte rishtey yahaan
bante bigadte armaano ke jahaan
jab hum aapko dil se yaad karenge
jaane aap honge kahaan
Output Text : Hindi
है पल पल बदलते रिश्ते यहाँ
बनते बिगड़ते अरमानो के जहाँ
जब हम आपको दिल से याद करेंगे
जाने आप होंगे कहाँ
Expect other Indian languages like Gujarati to be added soon. Gujaratilexicon – Utkarsh Team is also working on Gujarati Transliteration.