The 39-year-old 'Krrish' star underwent the surgery to remove a two-month-old clot caused due to an injury he sustained while shooting for 'Bang Bang'.
Hrithik has been advised four-weeks of rest and after that the actor promises to be back in action.
"I can't afford to take a sick leave. This throws a lot of lives, lives of people very dear to me, completely out of whack. But I cannot worry, that solves nothing. I have to focus on what can be," Hrithik said in a statement.
Hrithik's much awaited super-hero film 'Krrish 3' directed by his father Rakesh Roshan, will release on November 4. The shooting schedule of his upcoming film 'Bang Bang' has been postponed till he recuperates.
"I will of course be most careful. That I promise," Hrithik said.