Hello,

In JEE Main application only few details can be corrected when the correction window is open and the list of the fields that can be corrected are mentioned below

• Category
• Language of Entrance Exam
• Change of Paper
• Academic Details
• Name
• State of Eligibility
• Date of Birth
• Personal Details

So you can correct the hall ticket number when the correction window is open. It is a one time facility so you need to be careful. As of now the correction date for May session is not yet announced. When it is opened you can correct the details. To check the our article on JEE Main application correction click on the link below

https://engineering.careers360.com/articles/jee-main-application-form-correction