In your case the link is not activated so you cannot use forgot password option. You have to call the efiling helipline 1800 4250 0025 / +91 80 2650 0025 and ask then to send the link again. This has to be done by the PAN holder as they will ask certain questions to ascertain that. Then they might ask you to send an an email to them at validate @ incometax.gov.in