ISM 3.0 is legacy software. It was originally designed for Windows XP and Windows 7. If you are using Windows 10 or Windows 11, you may encounter compatibility issues or find that the software is no longer officially supported by C-DAC for free download.
If you are typing English letters but seeing weird symbols, check the "Language Bar" in your taskbar. Ensure ISM is active and the correct font is selected in your Word Processor.
ISM 6 Marathi Software Download Easy Typing on Windows - Lative
is typically a phonetic Marathi typing software (a keyboard layout/mapping tool), not a hardware driver. You don't need a "driver" in the traditional sense (like for a USB keyboard). Instead, you need to install the software that enables the Marathi phonetic typing scheme on Windows/Linux.