Once again we will see the father-son duo of Bachchan's Sr. and Jr. grace the screen.

While ad filmmaker R Balakrishnan's first feature film Cheeni Kum has yet to hit the theatres, slatted for the last week of May, the director already has plans for his next film.

The film, titled Pa, be a lighthearted comedy about father-son bonding.

Balakrishnan penned the script with both Amitabh Bachchan and Abhishek Bachchan in mind, and when he narrated the story idea to the father-son duo, they immediately agreed to do the film.

Pa will also have Paresh Rawal in an important role, as well as a female lead still to be decided opposite Abhishek.

While the director may be ready to hit the floors, shooting will not begin for at least a month as Abhishek currently on his honeymoon.

So, for the meantime, he is fully focused on the 25 May release of Cheeni Kum.