AA is the ligature to get ಅ
Ligatures are decorative or joined characters that are available for certain characters in fonts.
In Baravu few characters are ligatures.
Here is the link to enable in MS Word 2008 and above
Start writing anything in the word document. Assuming we have choosen Baravu font.
For now let us take example of AA, Without ligature support something like this will be displayed
Select the text then right click on it, for context menu
Click on Font
Click on combobox Ligatures
Select All option
Click on OK
Done! ಅ should be displayed as expected.