User Role

@gowtham,

You have many options to choose from...
1. You could build your own integrated user access system.
2. You could use Ion-Auth ( https://github.com/benedmunds/CodeIgniter-Ion-Auth )
3. You could use Bonfire ( https://github.com/ci-bonfire/Bonfire )
4. You could use Community Auth ( https://community-auth.com/ )
5. You could do a Google search and find other suggestions.

I'm quite sure if you do a search in the forums you will find other opinions and options.