In rbse improvement exam hota hai with the paasing of 12th immediate next year.
So contact your school principal for further guidance .
Yo may give improvement exam in 1 or 2 or 3 or all subject.

Hey Akhilesh,
Yes, you can give your boards again with different board after your 12th examinations.
But, I will not suggest you to do so. I mean why you are wasting your valuable time in doing 12th again when you have already done it with enough good marks with which you can do any graduation course.
I would only suggest you to prepare best for entrance exams for the course you want to pursue and then your 12th marks would not cause any trouble in your admissions. So concentrate on your future not past!
Work hard and smart to change yourself and give yourself a better future!
Feel free to ask any other doubt!
Good Luck!

Hello aspirant,
As per your question i do understand the situation.
Your percentage is not even this low as you think of.
Most of the top colleges ir universities require a pecentile of atleast 50 percentage.
However, the college requirement may go upto 60 percentage.
If you belong to SC/ST/OBC then the percentage required is even lower.
On the basis of the course you want to persue after 12th find out the minimum percentage required in 12th. If you do not fall under that category then repeat your class again otherwise i will not suggest you.
All the best.