Our friends Anupama and Nitin have posted on the Google blog about the Hindi transliteration feature that they added to Blogger:
Enabling the transliteration option allows you to type out Hindi words using phonetically equivalent English script, and see the words getting transformed into the corresponding Devanagari script. The plus is that you now don’t need to learn complicated mappings from English alphabet combinations to Hindi letters. That means you really don’t need to worry about WeiRD UpPerCasEing to get the right Hindi spellings.
To get started, enable Hindi transliteration here (or by going to Settings > Basic). We have a help article explaining how it works, and a thread on the Blogger Help Group to talk about it.