The 71-year-old was seen in Balki's unconventional film "Cheeni Kum", which was majorly shot in London.
`Work on Balki's film shall start by the middle of March ... and continue for some time ... there is material to be done overseas; I don't know where, but somewhere worth its travel,` Bachchan posted on his blog srbachchan.tumblr.com.
Actor Kamal Haasan's younger daughter Akshara will make her debut with the film, which will also feature southern actor Dhanush.
Highly acclaimed progeria-based "Paa" was Amitabh and Balki's last film together.
Big B is currently busy shooting `Bhootnath Returns`.