Hi @ravindra438511!

We can definitely help with that. In this situation, it sounds like you just want the notification to go them, not consider their availability at all. Correct? If so, setting up forwarding filters in your email provider is the way to go. More info can be found here: https://help.calendly.com/hc/en-us/articles/223145667-Working-with-multiple-email-accounts-and-calendars#2

Hope this helps!

Is It anything Like Guest emails . I think, can add 10 emails.  

If you’re going with the forwarding option from the article, it would be dependent on the email service you’re using and you could likely get creative with how many people by adding them to a larger email group and then forwarding to the entire group.