This answer is being written with little knowledge of Kannada. If I understand correct, you have registered for PGCET but entered the wrong email id or got the name wrong in the application form? If that is the case, there might be an issue during appearing for the examination. Because when you get the admit card and the details on the admit card and the details in your valid Id proof will be different and so there might be an issue during checking at the examination hall. Now that the application filling date has been closed by June 28th, you cannot re-register as well. So please send out a mail to the helpdesk at: : keauthority-ka@nic.in  from your registered email and check with them. Please mail them from your registered email id. But if your question is regarding entering wrong email id, you might still face issues. If your issue is not regarding both of these circumstances, please do help us with your question in English and we shall help you with relevant information.