Hello Punit,

http://cet.eadmissions.net/StudentLogin.aspx ,Click on forgot password, enter your email id with which you registered enter other details. Click on submit. You will receive a mail to change your password follow the steps you will be able to retrieve all. If still unable to do contact the cet administration team.

http://cet.eadmissions.net/Helpline.aspx

For any other queries, feel free to comment below. Have a great day!!