Hello, I hope you are doing well

If you are not satisfied with your board result or if you think that you can get better marks, then you can appear for improvement exams.

Yes, Karnataka state board does offer improvement exams. You can apply for improvement exam in as many as subjects as they want. There is no limit on the number of subjects that you can apply for in improvement exam. There is a certain fee that needs to be paid for every subject. Mostly the fee is around Rs. 100 per subject. For all the subjects, the student has to submit a separate fee. The date sheet for improvement exams will be released during month of June or July.

Hope this helps.