If you, a PCMC (Physics, Chemistry, Mathematics, Computer Science) student, have received a PCMB (Physics, Chemistry, Mathematics, Biology) hall ticket, it likely indicates a misunderstanding or a change in your examination or course requirements. While you're a PCMC student, you may have been incorrectly issued a PCMB hall ticket, potentially due to a clerical error or a change in your program or subject combinations.

Verify your Hall Ticket: Ensure it's the correct hall ticket for your exams and subject combination.

Contact your Institution: Inform your school or college about the discrepancy, and they should be able to clarify and rectify any errors.

If it's a mistake, get the right ticket: If you're certain it's an error, you need to get the correct PCMC hall ticket from your institution.

Clarify your course/exam details: If you have any questions about your course or exams, seek clarification from your institution.

In most cases, this issue can be resolved quickly by contacting your school or college.