As I Grow up in my life, after my MBA, the things as usually changed according to time period. with the developing time and growing business world wide, there is no such any particular definition of marketing. I have the list of more than thousand definition. From which I am going to define some of them with u all.
1. creating needs.
2. Passing information.
3.Analyzing customers behavior.
4.Remove the existing one.
And many more as much u can developed by own. But the one thing I would like say that definitions are depends on the purpose of the Organization.