The actor is currently admitted in the hospital.
Hrithik said he is suffering from chronic subdural hematoma.
Informing his fans about the surgery, the actor posted on his Facebook page: "We all know that we create a life of joy using the power of our mind. I've had the privilege of creating wonders with this amazing gift given to us called the brain.
Occasionally one must look within and realize its value. It gives us the power to see, hear, touch, smell and taste, it allows us to conquer fear and create courage to do things we never imagined."
"Maybe it's time for me to feel the power literally. I am going to go through brain surgery today and want you to know that I am going in with absolute power to recover fast. My thanks to all of you for using the power of your mind to contribute to my life. Love you all," Hrithik said.
In his last post, he said: "Minor brain surgery to remove blood clot (chronic subdural haematoma)'. Should be rock n rolling by evening! U guys have a great day too! Supersonic!!"
Hrithik's father and Bollywood filmmaker Rakesh Roshan also confirmed that his son will undergo a 'minor surgery'.
Rakesh Roshan told The Times of India: "It is a minor surgery called chronic subdural hematoma and it happens due to some impact on the head.''
"Hrithik Roshan got hit on his head during the shooting of Bang Bang two months back in Phuket. He had constant headache and it developed into a clot in between the brain membrane and the skull which he is getting operated for. Dr B K Mishra from Hinduja Hospital, who is a gamma knife specialist, will be operating him," he said.
