The two Bollywood biggies are reuniting on the big screen after 26 years for the film directed by Umesh Shukla.
Bachchan plays a 102-year-old father to Rishi, who essays the role of his 75-year-old son.
The first poster of the movie is out on social media and it shows the megastar in a happy-go-lucky mood sporting a long grey beard with spectacles.
While Rishi appears grumpy in a grey moustache as he looks at Bachchan.
Rishi took to Twitter where he shared his picture with his "Amar Akbar Anthony" co-star.
The film is based on the Gujarati play of the same name penned by Saumya Joshi.
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