on railway, you would use two services for this usecase, each service would deploy from the same repo as the django app does, but you would set the applicable command as the start command.

Could you please provide clarification on which two services are being referenced?

two new services, and those commands would be their start commands.

I understand, could you please clarify what you are referring to as "services"? Terminals? Would it be appropriate for me to define these commands in the Procfile with the main app commands? If not, then where do I run these commands?

railway services, nothing to do with a Procfile.

Okay, then where do I run these commands?

as mentioned previously, the commands you provided would be used as the services start command.

As asked previously, Where do I define these two commands? In build.sh? If not then where? I have asked it several times, What are referring to as "services"? I am not understanding it

the start command field is found in the service settings.

And Where do I find the "service settings"? Can you please provide a link of documentation or some page where I can completely understand?

click on the service and then click on the settings tab

Do you mean I need to create a "empty service" in redis?

Which settings, Django app's or redis's?

I'm not sure what redis has to do with this, I had assumed you already had redis deployed.

but no, these two new services would need to be deployed from your repo

There are multiple settings like

Custom Build Command,
Custom Start Command,
Cron Schedule ,
Railway Config File,
Replicas,

But Cron schedule is not accepting celery -A APP_NAME.celery worker --pool=solo -l INFO as command and showing error "Sorry but that's not a valid cron expression"

cron has nothing to do with this.

as mentioned previously, you would set those commands as the start command in each of your two new services.

But "Start command" can only take one command at a time.

I think I need to tell to "run build.sh" file where I can define both the commands. What do you think?

But "Start command" can only take one command at a time.

you're correct, that's why, as mentioned previously, you need two new services.

I don't know why you mention this build.sh file, or where this file is coming from or what you think it does, but I know its not needed.

You're saying no need of build.sh but Only one command at a time can be defined in "Start command"

again, you need two services, TWO.

you have two start commands, so you need two railway services.

one service for each command you need to run.

Okay, Thanks I will try and let you know.

One more thing, Do I create Empty service inside my project? (I can also define Start command in empty service)

as mentioned previously, the two new services would be deployed from your repo, the same repo that you use for django.

going forward, please carefully read my comments so that I can avoid continuous repetition.

Hi, Celery worked after creating two services. Thanks for the suggestions.