How to add additional fields while creating an account

for example, department , employee number, ect.

and also I want to make it mandatory to fill it up.

request you to help to do this..

Thank You

Admin panel -> Manage -> Forms -> Contact Details.

Then when you add a user you will have additional stuff to fill out.

Thank You Very Much sir its working great...

You are very welcome. I'll close this thread since you are all set, but please feel free to start a new one if you have another question.