sudo apt-get install ibus-m17n m17n-db ibus-gtk m17n-contrib
sudo apt-get install ibus-m17n m17n-db ibus-gtk
sudo dpkg -L m17n-db | grep unijoy
ibus-daemon -xdr
#now manualy add bangla(unijoy) from setting language
sudo apt-get install ibus-m17n m17n-db ibus-gtk m17n-contrib && sudo apt-get install ibus-m17n m17n-db ibus-gtk && sudo dpkg -L m17n-db | grep unijoy && ibus-daemon -xdr