Now you can use the Hindi text on your Android phone using Google Hindi Input that allows user to type messages, update on social networks or compose emails in Hindi on your Android phone or tablet.

You can get the Google Hindi input from the Google Play. There are two modes to use the Hindi – transliteration mode and keyboard node.if you enable the transliteration mode then application convert the English text to Hindi other wise you can use the Hindi keyboard.
Steps: How to use Hindi text on Android 4.x and newer versions
If you have Android 4 and above then you can enable the keyboard and set it as the default input method like as below:

Steps:How to use Hindi text on Android 2.x
There is no official Hindi font in Android 2.x, please make sure that your phone has the installed Hindi font in your phone, otherwise the app will not work properly.
