Source code link - http://www.tamilvu.org/sites/default/files/tamil-computing-tools/Aug_2020/Tamilinaiyam%20%20-%20Pizhaithiruthi.zip
Thanks to Tamil Virtual Academy, Chennai for releasing the source code of this application.
License : GNU GPL V2
This program is free software.
It is licensed under the GNU GPL version 2 or later.
That means you are free to use this program for any purpose;
free to study and modify this program to suit your needs;
and free to share this program or your modifications with anyone.
If you share this program or your modifications
you must grant the recipients the same freedoms.
To be more specific: you must share the source code under the same license.
For details see https://www.gnu.org/licenses/gpl-2.0.html
Check license.txt for full license info.
Check https://commons.wikimedia.org/wiki/File:Tamil-Virtual-Academy-Copyright-Declaration.jpg for license info.
Copyright (C) 2018 Neechalkaran
Developed based on http://vaani.neechalkaran.com
Funded by Tamil Virtual Academy, Govt of Tamil Nadu, Kotturpuram, Guindy
For more details contact neechalkaran@gmail.com