To check your CBSE Class 10 board exam results online, you can follow these steps:

1. **Visit the official CBSE website:** Go to the official website of the Central Board of Secondary Education (CBSE), which is http://cbse.nic.in.

2. **Navigate to the results section:** Look for the "Results" tab or section on the website's homepage. Click on it to proceed.

3. **Select the relevant exam:** On the results page, you will find a list of different exams. Choose the option that corresponds to the CBSE Class 10 board exams.

4. **Enter your details:** You will be required to enter your examination roll number, school code, center number, and other necessary details in the provided fields. Make sure to double-check the information you enter to avoid any errors.

5. **Submit the information:** After entering your details, click on the "Submit" button to proceed.

6. **View your result:** Once you have submitted your information, your CBSE Class 10 board exam result will be displayed on the screen. You can check your subject-wise grades or marks obtained in each subject.

7. **Download and print your result:** It is advisable to download and take a printout of your result for future reference. You can save it as a PDF or take a screenshot and print it out.

Remember to keep your roll number and other details handy before checking the results online. In case you are unable to access the CBSE website or face any technical difficulties, you can also check your results through other trusted websites or mobile applications that provide CBSE result services.

Please note that it is always recommended to verify your results from the official CBSE website or sources to ensure accuracy and authenticity.