As a trainee in his first job, D Shivakumar, who resigned from the post of chairman and chief executive officer of PepsiCo India Holdings recently, began writing letters to management guru Peter Drucker and was pleasantly surprised one day to find that Drucker had actually found the time to respond. Since then, “Shiv” — as friends and colleagues call him — has written to many management thinkers from around the globe and collected articles of most big authors. He likes to flaunt his collection of “guru correspondence” when he gets the opportunity but admits he learnt the ropes of “real”

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