Stock Market is a place where shares of pubic listed companies are traded. … The secondary market or the stock exchanges are regulated by the regulatory authority.A stock exchange facilitates stock brokers to trade company stocks and other securities.The benefit to companies from having their shares publicly traded is that they can issue new shares to raise capital for future investment.The SEBI is the regulatory authority in India.The main role of SEBI is to protect the interests of the investors and smooth functioning of the activities of the stock market.