Happy birthday Sir. Generally I wish all success and happiness in one's life on their birthday. Hope, you have seen your desired success in your life. I wish you to stay happy and healthy life forever. WHO or whoever may define any age to youth. I personally feel, people who are ready to learn and stay cool at all scenarios of life are young only. For that matter, my grand father, who is 86 years old now is an young icon to lead my life now. He reads newspapers every day, remember previous news, connect them all with the history and gives me the view on current politics, culture and lifestyle. I hope you people are the right persons to know the drastic differences, that has been happening in this century.
If possible, share the changes in your style of birthday celebration from school days, college days and now.