Hi! Great job scoring 91% in your 2024 Intermediate Science exams.

Yes, if you're aiming to improve your marks in three subjects, most boards (like CBSE and many state boards) allow improvement exams within 2 years of your original pass year. So, since you passed in 2024, you should be eligible to appear for improvement exams in 2026.

You can appear as a private candidate if your board allows that for improvement. Just make sure to check the specific rules of your board when the 2026 improvement exam notification comes out. They will mention how many subjects you're allowed to improve and the registration dates.

Also, keep in mind that only the latest marks are usually considered valid—so if your score goes down in improvement, that lower score may be counted.

All the best!