Hey, 

Greetings. Hope you're doing well. 

The only way to be eligible for DU admissions is to register online. If you've made an error, please try to rectify it. In a new update, it's now possible to correct errors which has been made in application process. This option was not available until the last year. If this option still doesn't work, you may register again but with another mail id. If the error is not a big mistake and you think it will not matter later, you may not rectify. But if it is a huge one, try the above option. DO NOT register again with the same mail. Please be careful.