"Yashji (Yash Chopra) is like my father. His birthday this year is very special because he is probably making his last film. All of our films are releasing this year but that film will be the most special experience of 2012," the 40-year-old said here in an interview.
"This year is special not just for him but for the whole industry because Yashji's last film is releasing this year," he added.
Chopra turns 80 Thursday.
Meanwhile, Karan is also excited about "Barfi!" making it to the Oscars and he hopes the film gets shortlisted.
"I am thrilled to bits and I think what better film than 'Barfi!' to make it. I have gone on record to say how it was truly most spectacular film experience I have had in years. It's really everyone's wish come true that 'Barfi' makes it and I hope it walks the red carpet next year," Karan said.