If you passed your CBSE Class 12 exams this year and wish to improve your performance next year, here’s how many improvement exam attempts you're allowed:

CBSE Improvement Exam Rules for Class 12

• Limit on Attempts
  You are eligible to appear for CBSE improvement of performance in one or more subjects in the succeeding year only. You cannot take these exams after a gap year if you have already pursued higher studies in the meantime

• Number of Improvement Attempts
  You can attempt the improvement exam only once, in the year immediately following your passing year

  Recommended

You are allowed only one attempt to improve your marks in the year following your passing year of any board.

You can choose to appear for improvement in one or more subjects, but it's a one-time opportunity.

You cannot have pursued higher studies after passing your Class 12th exams to be eligible for improvement.

If you choose to appear for improvement, you'll be considered a private candidate.

Good luck..