Configure Opera browser

• Point to Tools >
• Peference >
• General >
• Details click on Add.

• Select Bangla >
• Now point to "Advanced" tab >
  
• Choose "Fonts" on the left pan >
• Find the "International Font" button
• Click.
• 
  
• On Writing System
• Choose Bengali and Normal font.
• Select your preferred Unicode Bangla font from the list.
• Click Ok.
  

If you have a Newer Version of Opera browser then follow the instructions below: >

• Go to Tools >
• Prefereces >
• Advanced tab >
• Fonts>
• International fonts>
• Choose Bengali from drop down list.
• 
  
• Select Bengali font which you like.
• In most of cases, opera automatically detects your support for Unicode once you have it in operating systems and installed fonts.
• 
  
• Go to your browser’s View menu
  
• Set the character encoding or encoding feature to: Unicode (UTF-8).