Why do we drink a certain kind of milk, use a certain kind of shampoo or buy a certain washing machine. Do we really have a choice in these decision or are we compelled to make them by some hidden force. When you look at all the brands of milk powder available today the fingers in your hand wouldn't be enough to count them. We have to make a decision on which brand to choose. The question is what is the basis on which this choice will be made on. Most of the time the product you get packed in different packets under different brand names are ....