Simply installing the font will not automatically change your keyboard behavior. To type using the Pragathi Special font, you will need a compatible input tool or layout converter:
Use Windows' built-in Telugu language pack. Go to Settings > Time & Language > Language & Region. Add a language, search for "Telugu", and install it. Once installed, you can use the language bar to switch to a Telugu keyboard layout (like the popular Phonetic or InScript layouts). pragathi special telugu font free download top