Let me define the 'Rich' here. Anyone who makes an yearly income of USD 1 million can be considered as Rich, say what?
I would like to add to it,lets get our basics clear that we cannot (for an average general individual even if he slogs) 'earn' USD 1 million so we ought to sought out the others ways i.e. through investments and trading. Mutual funds are an easy way out and just one of the many ways to increase your income (as rightly said by kaustubh).