If you cannot find the specific "TM Heera" file, these are the current industry standards for Tamil design:
[Invoking related search suggestions]
To get the most out of your new font, consider these design tips: tm heera tamil font download new
TM Heera was originally distributed by (now part of Murasu Systems). Over time, it became freeware/shareware. However, to respect intellectual property: If you cannot find the specific "TM Heera"