Introduction:
Yes, you can definitely practice mindfulness and relaxation techniques to maintain a calm and focused mindset during CBSE Class 10 exam preparation. These techniques can help reduce stress, improve concentration, and enhance overall well-being. Here are some ways you can incorporate mindfulness and relaxation into your exam preparation routine:

1. Deep Breathing:
- Take a few moments to sit in a comfortable position and close your eyes.
- Inhale deeply through your nose, filling your lungs with air, and then exhale slowly through your mouth.
- Focus on your breath, noticing the sensation of each inhale and exhale. This can help calm your mind and bring your attention to the present moment.

2. Progressive Muscle Relaxation:
- Start by tensing and then relaxing each muscle group in your body, starting from your toes and moving up to your head.
- As you tense each muscle group, hold the tension for a few seconds, and then release it.
- This technique can help release physical tension and promote relaxation.

3. Mindful Meditation:
- Find a quiet and comfortable place to sit, and bring your attention to your breath.
- Notice the sensation of your breath as it enters and leaves your body.
- Whenever your mind wanders, gently bring your attention back to your breath. This practice can help improve focus and concentration.

4. Visualization:
- Close your eyes and imagine yourself in a calm and peaceful environment, such as a beach or a garden.
- Engage all your senses and visualize the details of this environment, such as the sound of waves or the scent of flowers.
- This technique can help create a mental space of relaxation and reduce stress.

5. Mindful Movement:
- Engage in physical activities like yoga, walking, or stretching.
- Pay attention to the sensations in your body as you move and focus on the present moment.
- This can help release tension, improve blood flow, and enhance mental clarity.

Conclusion:
Incorporating mindfulness and relaxation techniques into your CBSE Class 10 exam preparation can significantly benefit your overall well-being and academic performance. By practicing deep breathing, progressive muscle relaxation, mindful meditation, visualization, and mindful movement, you can maintain a calm and focused mindset, reduce stress, and improve concentration. Remember to make time for these practices regularly to reap their full benefits.