Ranbir to Shah Rukh: 7 Actors who turned down Aamir Khan's 3 Idiots

The makers offered Sanjay the role of Boman Irani, but he declined it. 

Shah Rukh Khan was approached for the role of Aamir Khan but he rejected due to prior work commitments. 

John also declined the film due to date issues. 

Makers offered Kajol the role of Rancho's love interest, Pia, but she rejected it as she did not find the role meaty enough. 

Ranbir Kapoor was approached by Rajkumar Hirani for the main role. However, he declined due to unknown reasons. 

Saif Ali Khan was offered the R Madhavan's role in the film, but he had to reject due to date issues. 

Irrfan Khan was offered the role of Dr Viru Sahastrabuddhe, but he turned down the offer.