How to install Avro Keyboard in Ubuntu 20.04

Avro Keyboard - Ubuntu: 20.04

Press Alt+Ctrl+T to start terminal and run following command

sudo apt install ibus-avro

Restart system or Log out - Log in

Go to Settings > Region & Language

In Input Sources click +

Click Bangla or Bangla (Bangladesh)

Finally select Bangla (Avro Phonetic)

Now it should work just fine.
If not make sure your Keyboard Input Method System is > IBus

Common Problem

Avro Stops writing Bangla. Try to restart ibus.

ibus restart

Open Ubuntu Software
Search Avro Phonetic in Ubuntu Software search bar
Click install
Restart the machine or Logout and then login again
Open Settings > Region & Language
Click on the + (plus) icon in Input Sources
Search for Bangla and then click on Bangla (Avro Phonetic)
The Avro Phonetic will be added to the Input Sources
Now you will get a dropdown for selecting bn for Bangla language in top bar right corner
You can switch between different Input Source using win + space keyboard shortcut