All are free to download and use, even commercially.
: You can find the font through various Tamil font repositories or specialized tools like the Tm-Heera-Font-Downloader . Tm-heera-font-download- 142
: Offers a wide variety of free, high-quality Tamil fonts like Arima Madurai Lohit Tamil Tamil Virtual Academy : Provides official Tamil Unicode fonts for free download All are free to download and use, even commercially