Birthday boy Shah Rukh Khan, who has been rejoicing the Box Office success of his latest `RA.One’, is reportedly upset with his contemporary Aamir Khan.

SRK’s film `RA.One` that’s boasts of having international technicians on board to get that larger than life visuals effects has been receiving mixed responses. The masses seem to have been bowled over by the visuals but the critics have been tremendously harsh. And if rumours are to be believed, Aamir is keeping a close tab on the BO collection of the superhero flick.

Talking to a tabloid, a source close to King Khan said, “People in the industry have taken this opportunity to get closer to Shah Rukh. Certain people from the industry too, have called and messaged him to say how Salman Khan and Aamir have been trying to run down `RA.One`.”

SRK and Salman have been at loggerheads for years now but cold vibes from Aamir is hurting the Badshah of Bollywood.

“Shah Rukh though not too concerned about Salman`s act was upset with Aamir. The Sallu-SRK rivalry has been going on for quite some time now. However, the news of Aamir choosing to support Salman has hurt Shah Rukh a lot,” the source added.

However, a source close to Aamir denied this allegation and said, “There has simply been a misunderstanding. Some people from the industry are just poisoning SRK`s mind.”

The source believes that some people in the industry are trying to cook up stories to widen the distances between the three big Khans of Bollywood.