The actor took to Instagram to share a post-workout selfie with Agastya from his gym at his residence.
In the monochrome picture, Big B is seen taking a mirror selfie with Agastya. Both are all smiles even as they strike a cool pose for the picture. They are seen holding a dumbbell each.
Sharing the picture on Instagram, Amitabh wrote: “Fight .. fight the fit .. fit the fight .. reflective mirrors , laterally inverted imagery .. and the inspiration with Grandson ..”
Agastya is Big B and Jaya Bachchan’s grandson from Shweta Bachchan Nanda and Nikhil Nanda.