The duo had teamed up for the 2012 hit film Barfi! and are now working on Jagga Jasoos.
"Ranbir is a good friend. If I am making a film and he suits the character... it's not like I am making a film with Ranbir on mind, but he is a good actor. He is versatile, which makes it easy for any filmmaker and we have a great time shooting together," Basu, who was one of the panelists on "How to shoot a film in Korea" at the Film Bazaar here, told.
"There are many actors who have impressed me. But this ("Jagga Jasoos" and the next film on late singer Kishore Kumar) are with Ranbir. I don't think I will work with any other actor apart from Ranbir for the next two years," he said.
The two are also partners of production house Picture Shuru Productions. Television will also keep him tied up.
Basu, who was seen on the small screen as a judge of acting reality show India's Best Cinestars Ki Khoj, has made a TV series that will be aired on Epic channel soon.
"It's all short stories of Rabindranath Tagore and 'Chokher Bali' is one of them. The stories of Tagore will be shown in the form of different episodes," he said.