Since it is a legacy font, you won't find it on major official font repositories like Google Fonts. You will need to download it from community-maintained archives. Here are the most reliable methods:
This is a critical point. Fonts like Ismail often use a (like DCI+Tml). This means a specific character code in the font file is mapped to a glyph, but this code may not be the universal standard. This can cause issues if you open a document on a computer without that exact font, as the text may appear as gibberish (mojibake). On the other hand, Unicode fonts (like Latha) use a universal standard, making documents more portable and reliable across platforms. download ismail tamil font