@ > You can try a tiny software called Font Fixer1.0.5 to change default Bangla (Bengali) font of your windows. It will change the default Bangla font as your desire. It is Freeware.
@ > Make your font look more smoother
Go to Display Properties- on Appearance tab click Effects button.
- Look at the text -"Use the following method to smooth edges of screen fonts".
- Just below this line select Clear type from drop down menu.
- Click Ok, then Apply and Ok.
- You will see the changes within seconds.