No, that was not my point, srkat. The premise of 2 states is that two people from different states ( customs, language) falling in love and how it cause resistance from parents. But in Chennai Express, it isn't so. There is no opposition for Shah Rukh, once Deepika says she loves him. CE is more a fun filled entertainer with back drop of southern India. The story does not show difference of customs as hindrance. Besides CE ran on SRK star power and DP too.
If you are referring to the idea of two lead characters being from two different states then remember that last year's Chennai Express was also a love story between two people from different states and it was a huge blockbuster! 😊
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