"Rowdy" is an Indian-English slang for a thug or troublemaker. "Rathore" is the surname of the police officer played by Akshay Kumar. The title means "The Troublemaking Rathore."
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You cannot talk about Rowdy Rathore without mentioning the music. The soundtrack, composed by Sajid–Wajid, was a chartbuster: "Rowdy" is an Indian-English slang for a thug
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