I Don’t Know Chammak Challo: Says Aamir Khan - Latest Bollywood News. The much talked about Ra.One song Chammak Challo is still unknown to actor Aamir Khan, that’s why when asked about the hype of Shahrukh's song, Aamir clearly denied knowning anything about it. Don’t believe us? Hear it yourself. Regular Facebook Updates http://www.facebook.com/RajshriDotCom
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