Wishing someone on their birthday is really good and important. You don’t need to have a friendly relation with them to wish him/her birthday. That’s the exact kind of relation one has with their boss. Some are pretty friendly, while others keep it formal. By wishing your boss on their birthday, you try to build a personal relationship with and get to know the off-work nature. It will really help you in soothing your way through many problems and doubts in your profession because your boss might help you with the experience. So, it would help if you greet your boss with Happy Birthday Wish.