how much money do i have to put in to make money ??

The best business to start with it 'Zero Investment Business'. i.e. Trading -- Take from one on credit, sale it to other on cash. You can do it with readymade garments, Essence Sticks (Agar Battis), Cosmetics etc. Amount may vary from Rs. 1,000 -- 5,000. Let the first lot that you put in, come back by more than 70%, then you roll the amount including the profit. In first 3/4 lots, try to recover what you have invested. Then roll from your earning. OK.

if u start from the website like mylot , it will not take any investment.

i dont think that minimum investment is any standard term. you need to tell that how much you can invest as this minimum amount and secondly in which country you are staying. what are the options for doing business in your local market etc. also it is important that you are interested in any internet based business or other types of work.