"Hearty greetings to Rajkumar Hirani and Vidhu Vinod Chopra for a wonderful and courageous film that they have produced in the shape of 'PK'," Advani said in a statement."We are fortunate to have been born in a vast and variegated country like India. This however casts on all patriots a duty to ensure that nothing weakens the unity of the country -neither caste nor community nor language nor region, and certainly not religion," he added.

Featuring Aamir as an alien, the film takes a hard hitting swipe on organised religion, god and godmen. Advani believes that religiosity is for "our nation an inexhaustible source of spiritualism, and so of ethical conduct. Those who run down religion, any religion, are doing a great disservice to the country and to its unity".

"It is this cardinal lesson that emerges clearly out of this recently released film 'PK' which has excellent performances by the protagonists Aamir Khan, Anushka Sharma and Boman Irani," he added.

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