Hello student,

Let me guess that you are asking about the filling of JEE Mains application form for March session. So let me tell you that, for the year 2021, the JEE Mains is going to conduct in 4 sessions. Candidates have to fill only one application form of JEE Main 2021 for all sessions and the application form fee has to be paid depending on the number of sessions candidates select to appear.

Also, if some student fails to fill the February session form, then don't be worry. The application form for next 3 sessions will be briefly introduced by NTA . You can check link given below for more info.

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-application-form/amp

Hope it helps.