Instructions:

1. 1) Begin by downloading the file bangla_commands.tex from this location.
2. 2) Place the bangla_commands.tex file in the same folder as the main.tex file.
3. 3) Insert the command \input{bangla_commands} after the \documentclass command.
4. 4) Your setup is now prepared. Convert any Bengali sentence into LaTeX commands here and then copy and paste it into the relevant sections of your LaTeX file.