You deserve everything best as you are the best teacher. Thank you for being so considerate, kind, and helpful.
You were so generous with your time and efforts. Thank you for being a great teacher. Many happy returns and good wishes for you.
O captain! My captain! May God bless you forever and always. Thank you for being our captain. Happy birthday, teacher.
Forever thankful to you for shaping my life. You will always remain my favorite teacher. Happy birthday.
Here is to another year of sharing your great wisdom and knowledge with your students. Happy birthday, favorite teacher.
Thank you for all your efforts and methods. I hope your birthday is as special as you are- dear teacher.
Thanks for being one of the most important figures of my life. Wishing you all the happiness, dear teacher.
May you receive the same amount of kindness you have always showered us with. Happy returns of the day, teacher.
Thank you teacher for guiding us, for inspiring us, for making us what we are today. Happy birthday dear sir.