Hello,

If you have forgot your TNEA password then you can easily recover it by simply clicking on "forgot password". It will ask your User ID, simply enter it (kindly check the mail you received from TNEA if you have also forgot the User ID).
After they verify you as a genuine person, you will get your password.

If you are having any trouble while recovering your password, kindly contact their authorities so that they can help you.

Hope this helps, all the best.