Hello,

The rules to an improvement exam may not be known to your school. CBSE guidelines state that those who pass the Class 12 exams can appear for improvement examinations in any number of subjects in the next year, and all this while attending college courses. The fact that you get admitted to a college should not disqualify you from sitting for the improvement examination.

The improvement test is available as a chance to improve the assessment marks and CBSE shall not mind if people without satisfactory marks come along with them. However, you would have to get yourself enrolled for the test on the CBSE portal before the closure of the registration period. Now, the rules should be explained to your school, and if necessary, take the official CBSE guidelines to plead your case.

For more precise information, one may always refer to the official website of CBSE or regional offices in order to rectify the same.