National Stock Exchange (NSE) is an exchange (market) where traders, whether buyer or seller agrees to have an exchange of there respected securities .The National Stock Exchange of India Ltd. (NSE) is the leading stock exchange in India and the third largest in the world by nos. of trades in equity shares in 2017, according to World Federation of Exchanges(WFE) report. NSE was the first exchange in India to implement electronic or screen based trading. It began operations in 1994 and is ranked as the largest stock exchange in India in terms of total and average daily turnover for equity shares every year since 1995, based on SEBI data. NSE has a fully-integrated business model comprising exchange listings, trading services, clearing and settlement services, indices, market data feeds, technology solutions and financial education offerings.A stock exchange helps Stock brokers (A stockbroker is an individual /organization who are given a license By Sebi (The Securities and Exchange Board of India) to participate in the securities market on behalf of clients) to trade company stocks and other securities. In 1993 NSE (National Stock Exchange) was formed .