Yes, the above e-mail is from hacker and please ignore it. They keep your e-mail address as well as previous record so, they will certainly disturb you by sending these e-mails and will ask you to send payment to their account outside Pakistan.
Please beware of these e-mails and send payment only to N.D. Surgical Industries through Habib Bank Ltd., Sialkot - Pakistan as we don't have any other account in any other country.