Google transliteration is a great tool to translate words typed in English to most of Indian Languages, Hindi, Telugu, Tamil, Bengali, Gujarati etc.
Let’s say you want to produce some Hindi script. You simply have to type those Hindi words in English and hit space after each word. For example, in the Google Transliterate page, type ‘kya bol rahe ho?’, and it would automatically translate into Hindi (you have to select Hindi as your translation language) after every space hit.
Similarly if you select Telugu as translation language and type ‘enduku alaa chestunnaru?’, it will automatically appear in telugu after every space hit between words.
This is, however, only useful if you want to write a script from scratch yourself. If you want to completely translate a website or webpage which is in English to Telugu or Tamil (for Hindi, it is possible to translate a document or webpage; for example see reading Dainik Jagran in English and Vice versa), that tool doesn’t help you in any way. In this case you either have to translate each sentence in English to Telugu using your own translation skills first and then type those Telugu words in English to finalize the script or take help of those translation companies that do the work for you for some money.