Then hang up.

Your bank or any institution that has your phone number will have your email address too. Scammers running an auto dialer will not.

Do not reply to any emails.

If an email looks legit, contact the institution from their website, not any phone number in an email.

Wife just goes into full on sailor-language swearing mode as soon as she hears an Indian accent.

Unfortunately, the attempted fraud will continue while it is profitable.