Hi,

In accordance with CBSE regulations, you are permitted to retake the compartment test if you did not pass your first try. The compartment test is normally held in July, not long after the results are announced. On further efforts, though, you may resurface if you still fail.
In response to your inquiry concerning the holding of an improvement exam subsequent to the compartment exam, the CBSE often permits students to take improvement examinations in order to increase their grades; however, this is typically done only after passing every subject. Students who have already passed but wish to raise their grades in one or more topics are eligible to take the improvement test.
In your situation, if you want to pass the compartment test in March 2025, you may want to consider taking the improvement exam in July 2025 if you're not happy with how you performed. The most recent CBSE instructions should be consulted, or you may get in touch with your school or the CBSE directly, to make sure of this. Policies might change, and there can be particular guidelines about when and who is eligible for improvement examinations after compartment exams.

Hope you find this useful.