Hello candidate,

In order to fill the details required in JEE MAINS examination gorm, you are required to fill the board roll number.

But as you have mentioned that you have not recieved your roll number so donot worry, there are various options available you can fill N/A or not recieved yet option if it is available right now in your examination form.

Apart from this you can also ask from your colleagues as they are also appearing for the same.

I hope this answer will help you.

Thanks!!