I recommend using Akitu Chaldean font for Madnhaya font style.
Download the font using the button above
Right click on the download file and choose "Copy"
Copy the file to C:\Windows\Fonts
Verify the font is installed successfully
Make sure to close and open Microsoft Word or other application you are using to reload the fonts
Choose "Akitu Chaldean" font and enjoy typing in Chaldean Madnhaya style