Are you Confused on How to use malayalm Fonts.Follow the Easy way
How to install Malayalam Font (Windows 8, 7, Vista, XP)
Step 1: Download Malayalam Font
Step 2: After download the zip file -> Extract it -> Now you will found .ttf file
Step 3: Now go to Start -> Control Panel -> Fonts -> Paste the font file
Step 4: You done all thing now go to MS word select font from drop down and type in malayalam font.