@Priyansh-max This will need to be handled by Netlify’s support team manually.
You can create a ‘helpdesk’ ticket here:
https://www.netlify.com/support/
When asked ‘What kind of help do you need?’ select ‘Another site is using this domain’
You may need to create a TXT record to verify your ownership of the domain.
You can follow the instructions here:
https://answers.netlify.com/t/support-guide-another-site-is-using-this-domain-verifying-domain-ownership-for-netlify-production-domain/13765
Set the name to verified-for-netlify
Set the value to https://answers.netlify.com/t/priyanshagarwal-me-or-one-of-its-subdomains-is-already-managed-by-netlify-dns-on-another-team/141643