Hello Aspirant ,

There is no such essay number in JEE MAINS. I thinks you are asking about the application procedure of JEE MAINS. The steps for application form are:

1. Visit the official JEE Main/NTA website.
2. Register for the exam.
3. Fill essential details.
4. Upload documents.
5. Pay the application fee.
6. Book your slots for the exam.

Hope it helps!