1. BD Board (HSC/SSC) 5.0 Scale:
80-100: A+ (5.0) | 70-79: A (4.0) | 60-69: A- (3.5) | 50-59: B (3.0) | 40-49: C (2.0) | 33-39: D (1.0) | 0-32: F (0.0).
2. 4th Subject Bonus Rule:
Bonus = max(0, GP_4th - 2.0)
GPA = min(5.00, (∑ GP_compulsory + Bonus) / N_compulsory)
If any compulsory subject is failed (GP=0.0), final GPA is 0.00.
3. UGC University 4.0 Scale:
CGPA = (∑ Credits_i × GradePoint_i) / (∑ Credits_i)
4. Required Target CGPA Formula:
GPA_req = [CGPA_target × (Cr_cur + Cr_rem) - (CGPA_cur × Cr_cur)] / Cr_rem