Hello Rakeeba,

Thank you for reaching out. I understand that you're experiencing issues with your registration number and NDA admit card. Since your registration number appears to have been removed from your email and you are encountering problems with the "Forget RID" option, I recommend the following steps:

1. Double-Check Information : Ensure that all the details you are entering are correct and match exactly with the information you provided during registration.

2. Contact Support : Reach out to the support team of the examination authority or the relevant helpdesk for further assistance. They can provide specific guidance and verify your registration details.

3. Email Verification : Verify that the email address you used during registration is correct and that there are no issues with the email service provider.

If you continue to face difficulties, please let me know, and I will assist you further.