There are thousands of companies listed on stock exchange. It will be very difficult to track every stock that trades on an exchange. Therefore a small sample of the companies in the market is taken which is a representation of the whole market. This small sample is called an index. It is a statistical measure of the change in a portfolio of companies stocks which represent a portion of the overall market. Sensex and Nifty are both large-cap index and from different exchanges that is BSE and NSE respectively. They are the indicators of market behavior and give an idea whether most shares have gone up or down. Usually, it is used as a benchmark for portfolio performance. The index gives the comparison of returns on investment with other asset class like real estate, gold, bond, or debt. The index committee which is made up of academicians, financial journalists, mutual fund managers, and independent governing board members choose ...