Yes, you can still appear for your 4th year BSc Nursing exam, but the process depends on your university’s rules. Since you discontinued after 3rd year and a gap of 2 years has passed, you will generally need to:

1. Re-register or take re-admission for the 4th year with your college/university.

2. Apply through your college principal/nursing department, as students usually cannot apply directly to the university exam.

3. Clear any pending fees/dues and submit a formal application for continuation after the gap.

4. Some universities may require a gap certificate/approval from the registrar before you’re allowed to sit for exams.