From his directorial debut film "Cheeni Kum" to "Shamitabh", Balki has cast Bachchan in quirky and unusual roles.
Their recent collaboration was for "Ki and Ka", in which Big B has a special appearance with his actress wife Jaya Bachchan.
The filmmaker said it's not difficult for him to think of novel ideas for the 73-year-old legend.
"It comes naturally to me... I don't have to struggle hard for it. Something is coming next... We will do. I can't share anything as it is too early," Balki told PTI.
The "Cheeni Kum" director candidly says he wants to do a light-hearted film so that the atmosphere on the sets is relaxed.
"During 'Cheeni Kum' he was acting like a 'khadoos' (snobbish) as he was in his character. During 'Paa' he was like a child and during 'Shamitabh' he was worse! Total 'khadoos'. He says he is in character," Balki said.
"I would write a slapstick comedy for him he is fantastic at comedy. So that he can laugh. I will write comedy and serious roles for him," he said jokingly.
Balki is currently busy promoting his next film "Ki and Ka", starring Kareena Kapoor Khan and Arjun Kapoor.
The film will hit theatres on April 1.
