How to change or use custome mp3 ringtones in older old Android 2.3

In older versions of Android 2.3 and others, using custom ringtone like mp3 music of your own choice is bit tricky.

However with little effort its possible.

You just have to create a ringtones folder in  SD memory and paste the musics there.

Now go to audio profiles in settings you will find your music there.

Solved!