You must be join FORUM of this site (with the same EmailID) that you mentioned during the Registration on my site AMITABHSirKiClasses.org.in.
Your FORUM ID should be Activated, for that, you will be Email an activation Email to your EmailID. Check there sometimes you can find that Email on Junk mail folder.
If you did not get any Email after a long time, then send me an Email from your EmailID (that you mentioned in your registration) to my EMailID [email protected] I will ACTIVATE your account.
If you forget your password then sorry, this software is fully password encrypted.
POST at Questions/Queries in under proper FORUM Topic.