Fan shares rare 42-yr-old handwritten letter from Amitabh Bachchan. A day after Amitabh Bachchan celebrated his 84th birthday, a rare handwritten letter by the actor from 1984 has surfaced on social media. Dr Bhawana Upadhyaya shared the image and revealed that her husband was the original recipient of the letter. Despite the 42-year passage, the family called the letter an "unforgettable memory" and preserved it for its emotional value.