Because Ismail is a non-Unicode (legacy) font, you cannot simply install the font and start typing with the standard Windows Tamil keyboard. You have two main options:
The safest way is to use a Tamil keyboard mapper like or Tamil Key . dci tml ismail tamil font keyboard download
The fact that people are still searching for "DCI TML Ismail" highlights a unique aspect of Tamil computing: Unlike English, where QWERTY has been standard for a century, Tamil computing went through a "format war" in the 90s and early 2000s. The Ismail layout lost the battle for standardization to Unicode (Tamil99), but it won the loyalty of a generation of typists. The "download" search represents thousands of clerks, writers, and administrators trying to keep their digital tools compatible with their muscle memory. Because Ismail is a non-Unicode (legacy) font, you