Hello aspirant

No, the supplementary exams are not much difficult as the regular board exams. Some out of the syllabus questions come in exams. But that is not something to worry about.

The format of these exams is the same as the regular board game and you just have to focus on the same question pattern and revise the same concept for this exam.

Further to know more about the Karnataka PUC exam class 12 - exam syllabus, exam pattern, etc - you can follow the below-mentioned link to know more about it: https://www.google.com/url?sa=t&source=web&rct=j&url=https://school.careers360.com/exams/karnataka-puc-board/amp&ved=2ahUKEwjItO7w2az4AhUF63MBHYBKCyMQFnoECAUQAQ&usg=AOvVaw3datSgv8Nq71ETAA6Q0Ie1

I hope that this will help.