Bidding is an offer (often competitive) of setting a price one is willing to pay for something or a demand that something be done. A price offer is called a bid. The term may be used in context of auctions, stock exchange, card games, or real estate. Bidding is used by various economic niche for determining the demand and hence the value of the article or property, in today's world of advance technology, Internet is one of the most favourite platforms for providing bidding facilities, it is the most natural way of determining the price of a commodity in a free market economy.