Answer:
Dear Uncle,
I hope this letter finds you in good health and high spirits. I am writing to update you on my current endeavors and how I am preparing for my upcoming promotional examination.
As you may know, the exam is just around the corner and I have been devoting a considerable amount of time and effort towards my preparation. I have been following a strict study schedule and have been reviewing all the relevant material thoroughly. I have also been practicing previous years' exam papers to get a better understanding of the exam pattern and format.
Furthermore, I have been attending coaching classes that have been specifically designed to help candidates like me excel in these exams. These classes have been quite helpful in providing me with insights and strategies to tackle the exam effectively.
Apart from this, I have also been taking care of my health and wellbeing by engaging in regular physical exercise and maintaining a balanced diet. I believe that a healthy body and mind are essential for success in any endeavor.
Overall, I am feeling confident about my preparation and believe that I will be able to perform well in the exam. I am grateful for your continuous support and encouragement throughout my academic and professional journey.
Thank you for taking the time to read my letter. I look forward to catching up with you soon.
Best regards,
[Your Name]