Not many people know but the director, Rajkumar Hirani is very fond of different languages. India has numerous languages and the director finds them very fascinating.
The director tries to use them as a device in his films.
Rajkumar Hirani feels that unusual languages lend colour to a film and make them all the more interesting.
He uses different languages in his films to give it an authentic feel.
In Munnabhai MBBS and Lagey Raho Munnabhai, Raju Hirani used the typical Bombay Hindi while in his upcoming film P.K., Bhojpuri will be widely spoken.
Aamir Khan went to great lengths to learn Bhojpuri thoroughly and practice it well so that he could speak fluently in the correct accent.
The Bhojpuri language is a very important tool in P.K.