run.py

students = [
    [12102130600101, 'Bhavya', 'CS', ['PWP','DAA','CAD'] , [80, 85, 90], [70, 75, 80], [90, 95, 100]],
    [12102130600102, 'Dhruv', 'IT', ['PWP','DAA','CAD'] , [75, 80, 85], [65, 70, 75], [85, 90, 95]],
    [12102130600103, 'Dhara', 'ECE', ['PWP','DAA','CAD'] , [85, 90, 95], [75, 80, 85], [95, 100, 100]],
    [12102130600104, 'Kayur', 'ME', ['PWP','DAA','CAD'] , [70, 75, 80], [60, 65, 70], [80, 85, 90]],
]

student_dict = {}
for student in students:
    enrollment_no = student[0]
    name = student[1]
    course = student[2]
    subjects = student[3]
    mid_sem_marks = student[4]
    end_sem_marks = student[5]
    viva_marks = student[6]
    student_dict[enrollment_no] = {
        'name': name,
        'course': course,
        'subjects': subjects,
        'mid_sem_marks': mid_sem_marks,
        'end_sem_marks': end_sem_marks,
        'viva_marks': viva_marks
    }

print(student_dict[12102130600101])