The following is a simple general greeting template, which can be used to send New Year greetings to leaders:

Dear [name of leader]:

On the occasion of the new year, I want to express my most sincere wishes and thanks to you. Thank you for your support and guidance in the past year, so that I can make continuous progress and achieve results in my work.

I wish you good health, smooth work, happy family and all the best in the new year. I hope your career is more successful and your life is better.

Thank you again for your concern and support all the time. I wish you a happy new year and all the best!

[Your name]