Bash script when executed throws command not found error

Hi , I am trying to execute a bash script by running that in my power shell terminal in windows 11 desktop - bash test.sh.
It gives me the below error -

test.sh: line 1: FROM: command not found
test.sh: line 3: RUN: command not found
test.sh: line 6: RUN: command not found
test.sh: line 9: RUN: command not found
test.sh: line 12: ENV: command not found

Hi @rashmita ,
Those messages suggest to me it is not a bash script. It looks more like a Dockerfile?
Can you show us the first say 15 lines of the script?
We need to see what it is to understand those messages

Regards
Neville