It is supported by various Tamil typing tools like Azhagi , which allows users to type in multiple encodings including TAB, TAM, and Unicode. How to Download and Install TAB Vanavil Anna
Originally released around 1999 by Vanavil Software, Chennai. Tab Vanavil Anna Font Download
Alternatively, drag the file into the C:\Windows\Fonts folder. It is supported by various Tamil typing tools
Copy the font file to the /usr/share/fonts or ~/.local/share/fonts directory. Usage and Compatibility TAB-Anna Font Download - Tamil Normal Font Tab Vanavil Anna Font Download