Share market is where shares are either issued or traded in. A stock market is similar to a share market , a key difference is that a stock market helps you trade financial instruments like bonds, mutual funds, derivatives as well as shares of companies. The key factor is the stock exchange – the basic platform that provides the facilities used to trade company stock and other securities. It help us to decide the demand and supply of the company. SEBI has the responsibilities of both development and regulation of the market. NSE is the most popular trading platform as it has huge transparency in trading.