Yes, it is possible to change the exam center for the Class 10 CBSE board exams under certain circumstances. However, it is important to note that the process and eligibility criteria for changing the exam center may vary from one board to another or even within different regions of the same board. Here is a detailed explanation of the process:

1. Understanding the Eligibility Criteria:
Before attempting to change the exam center, it is essential to understand the eligibility criteria set by the respective board. Generally, the following factors may be considered:

- Valid reasons: Some common valid reasons for changing the exam center include relocation to a different city or state, medical reasons, or any other genuine circumstances that make it difficult for a student to appear for the exam at the assigned center.

- Availability of seats: The availability of seats at the desired exam center is another crucial factor. If there are no vacant seats or the capacity of the center has been reached, it might not be possible to change the center.

2. Contacting the School or Board:
The first step is to contact your school or the regional office of the board to inquire about the process of changing the exam center. They will provide you with the necessary information and guidance regarding the specific requirements and steps to be followed.

3. Submitting an Application:
In most cases, you will be required to submit a written application stating the reasons for changing the exam center. The application should be addressed to the school principal or the regional officer of the board. Make sure to include all the relevant details and supporting documents, if any, to strengthen your case.

4. Approval and Confirmation:
Once your application is submitted, it will be reviewed by the concerned authorities. If your request is found to be valid and there are available seats at the desired exam center, you may receive the approval for the change. The school or board will then provide you with the updated exam center details and a confirmation letter.

5. Adhering to Deadlines:
It is important to keep track of the deadlines set by the board for requesting a change in the exam center. Missing the deadline may result in your application not being considered or processed.

6. Collecting the Updated Admit Card:
After receiving the approval and confirmation, you should collect the updated admit card from your school or the board. The admit card will reflect the new exam center details.

7. Informing Others:
Once you have successfully changed your exam center, make sure to inform your parents, school, and any other relevant parties about the change to avoid any confusion or miscommunication.

Conclusion:
Changing the exam center for the Class 10 CBSE board exams is possible, but it requires following the specific guidelines and meeting the eligibility criteria set by the board. It is crucial to contact your school or the board's regional office for accurate information and guidance regarding the process. Make sure to submit a well-written application stating valid reasons and provide supporting documents if necessary. Remember to adhere to the deadlines and collect the updated admit card.

It is important to carefully select the city where a student wishes to take their examination, as the request submitted by the school will not permit any changes. Should a change be necessary for both the theoretical and practical exams, they will both be relocated to the same city.