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Hello phanikiraniphone,

Welcome to Apple Support Communities.

From reading your post, it appears you are unable to reset your Apple ID with the correct phone number and are getting an error message, correct?

Here is an article to follow with steps to help resolve this issue:

If you forgot your Apple ID password

In the event that the phone number showing to reset the password is an old phone number, place the old number phone in that step, click on do not have access to the device, and start iCloud account recovery.

Recover your Apple ID when you can’t reset your password

Hopefully this helps!

If your Apple ID is locked or it sounds like it may be locked soon with the repeated attempts as described, then see this - If your Apple ID is locked or disabled - Apple Support.