Shah Rukh Khan took to his social media accounts on Wednesday to wish Amitabh Bachchan on his birthday, sharing a message about the latter’s resilience along with a compliment for his remarkable dedication to fitness.

Amitabh turned 81 on October 11.

Shah Rukh posted a captivating picture of himself running alongside Amitabh Bachchan on his official social media handles. “Tough runs don't last... tough runners do. And Sir, you are the toughest of them all. The last 30 years just being around you and breathing the same air as you... has been a blessing. Wish you the best on your birthday... keep running & inspiring us. Sir, and that Gym of yours... is unbelievable. Love you!" he wrote in the caption.

The image shared by Shah Rukh is from a recent commercial where both actors played themselves. They are depicted as ready to wrap up a day’s shoot at a film studio, eagerly anticipating their favourite home-cooked dishes — Hyderabadi and Lucknowi biryani, respectively. However, the actors get surrounded by the paparazzi as they attempt to divert the photographers’ attention to one another in a humorous attempt to clear a path. After a few failed attempts, Shah Rukh and Amitabh join forces as they point in two different directions, collectively exclaiming, “Alia!.” The clever ploy successfully sends the photographers in two different directions, allowing the actors to escape towards their parked cars.

As for their upcoming projects, Shah Rukh Khan is gearing up for the release of Rajkumar Hirani’s Dunki during Christmas, while Amitabh Bachchan's fans eagerly await his next film Ganapath: A Hero is Born, slated to hit cinemas on October 20.