Hey friend,

You need not worry about this . There's always a second chance. For students who fail to secure passing marks in 1-2 subjects, most boards provide compartment exam. You have not mentioned your board so I cam not exactly explain about the procedure.

However, for CBSE board, compartment exams are set up for those students who couldn't pass in 1-2 subjects in class 10/12 boards. Atmost three chances are given to such students to clear the CBSE Compartment Exam. If they still ate unable to pass, the students will be dropped into the failed section, and they will have to be readmitted to their previous class.

The regular students must visit their schools, the school authority fills up the application form for those students. Otherwise, the students have to apply using their admit card details from the official website of CBSE.

Hope this helps,

All the best!