Mumbai, Oct. 12 -- Wishing legendary actor and her father-in-law, Amitabh Bachchan, on his 84th birthday, Aishwarya Rai Bachchan penned an adorable post on Instagram.

"Happy Birthday dearest Pa-Dadajiii (heart emojis) Love and God Bless always," she wrote.

Aishwarya also dropped a sweet photograph of her daughter Aaradhya with Big B, showcasing the "dada-poti" bond.

Big B received heartfelt wishes from industry colleagues as well.

Sanjay Dutt wished the veteran actor in an Instagram post describing the actor as his "hero". The actor also shared throwback photos from his interactions with Amitabh Bachchan.

While sharing the photos, Sanjay Dutt said, "Dear Sir, happy birthday and may God bless you. You have always loved me, and I thank...