Hrithik Roshan had a stammering problem since childhood. In order to combat the problem, he took speech lessons and, today, he is one of the most eloquent Bollywood stars.
Imran Khan is not an Indian citizen, but he is actually a US citizen.
Parineeti Chopra was a nerd in her school days & stood first all over India in her 12th standard exams. For this, she was rewarded by the then President of India.
Rani Mukherjee While in school at the age of 14, Rani did a cameo role in her father's Bengali film Biyar Phool (1992).