01 August 2013
If you're not able to reset the password with any of the three options available for reset,then please send an email to - validate@incometaxindia.gov.in with the following details
PAN PAN holder's Name Date of Birth / Date of Incorporation Father's Name Registered PAN address
you can send the above mail from any mail id what you want then with in 24 hours you will receive a dummy password to the mail ID from which you send the above mail. From such password you shall login and change to your new password and then you can change all profile settings including registered mail id, phone number etc..