Bollywood superstar Shah Rukh Khan says he had a desire to be a part of the upcoming "Ittefaq" but could not due to his busy schedule. However, he feels happy to be a part of it as a producer. Ittefaq is a muder mysetry and has karan johar, shah rukh and ranbir kapoor. Shah Rukh's role was later offered to Akshaye Khanna who did it. "Ittefaq", featuring Sidharth Malhotra, Akshay and Sonakshi Sinha.