Who is D.K. Bose?

Ever since I watched the promo, I wanted to see what the song was all about and after I saw the movie, I wonder who is D.K. Bose and why is he running.

Is it Shiney Ahuja running after his maid servants or is it Swamy Nithyananda running after his female devotees?
Is it Anna and Co., running after the Lok Pal bill or is it Baba Ramdev fleeing from his camp in a Salwar kameez?
Is it Rahul Dravid running and scoring elegantly in Test Cricket or Sania mirza running hard to exit from the 2nd round of Wimbledon?
Is it our Honorable Prime Minister running away from the media avoiding facing questions or is it the media itself running after useless coverage.
Is it the Telangana leaders who are trying hard to make the best profits out of the worst situations or is it the  other group of politicians competing to gather in Tihar jail?
Is it Julian Assange trying to save Wikileaks from falling into the hands of the faulty governments or is it the common man revolting against Anarchies?
Is it the U.S Navy seals who were chasing Osama or is it the Indian Govt. who are still hunting for leads on the 26/11 attacks?
Is it the Delhi women who are trying to save themselves from getting abused or is it someone warning the Bachelors from getting hitched?
Or, or, or, may be it is just me trying to run away from Kansas.