Dale Carnegie 
Aap Bhi Leader Ban Sakte Hain (Hindi Translation of The Leader In You) by Dale Carnegie 

The book focuses on identifying your own leadership strengths to get success. Leadership is never easy. But thankful, something else is also true. Everyone of us has the potential to be a leader every day. Many people still have a narrow understanding of what leadership really is. But the fact of the matter is that leadership doesn’t begin and end at the very top. It is every bit as important, perhaps more important, in the place most of us live and work. The leadership techniques that will work best for you are the ones you nurture inside. The best selling book on Human Relations.