106 yrs since world's 1st airmail service began in India
The world's first official airmail service using an airplane took place on February 18, 1911, when a two-seater bi-plane carrying letters and mail flew over 8 kilometres from Allahabad to Naini. All the mail received using the service had a special stamp depicting an airplane, mountains and "First Aerial Post, 1911, U. P. Exhibition Allahabad."