Mukesh Negi wrote:

Does FreeRadius supports multiple clients with different set of authentication criterias. For example, for a client 'A', sending auth-request packet, only ldap should be used, but for the client 'B', sending auth-request packet, first ldap and then db should be used.

Yes.

If this feature is already their in FreeRadius please guide me how can I do this.

Read raddb/sites-available/README. You can create a virtual server for a client. It is all documented in great detail. Alan DeKok.