Megastar Amitabh Bachchan, who has got a strong fan following both nationally and internationally, was amazed to when the father of a four-month-old stopped him to say: "My son is your biggest fan".

"Car in London chases me to stop. Gentleman comes down and says 'My son your biggest fan, just a hi to him'. Gentleman brings out 4 month baby, " the 69-year-old tweeted.