How to set different ringtone for saved and unsaved contacts on iPhone?

Hi suhas75

welcome to the Apple (user-to-user) Community.

Re: How to set different ringtone for saved and unsaved contacts on iPhone?

Apple support have articles online (links below)that may help:

Eg: You can choose a tone for incoming calls:

(NB Article is for iOS 16, or choose your iPhone's iOS version at the top of the article, for accurate info.)

Change iPhone sounds and vibrations - Apple Support

and then:

You can set a different ring tone (or individual tones) for each person in your Contacts app:

Use tones and ringtones with your iPhone or iPad - Apple Support

All the best :-)