The National Stock Exchange (NSE) is the leading stock exchange of India. Today, the stock market uses state-of-art information technology in order to provide an efficient and transparent trading, clearing and settlement mechanism and has witnessed several innovations in products and services viz. stock exchange governance, screen based trading, electronic transfer of securities, securities lending and borrowing, risk management systems, emergence of clearing corporations to assume counter party risks, market of debt and derivative instruments and intensive use of information technology. The NSE is one of the few exchanges in the world trading all types of securities on a single platform, which is divided in to capital market, wholesale debt market and futures & options market. The present study tries to assess the performance of top five sectoral indices of NSE i.e. Nifty Bank, Nifty Auto, Nifty FMCG, Nifty IT and Nifty Pharma since 2015 which is based on secondary data extracted from NSE publications. The data consider for the study covers a period ranging from 2015-16 to 2021-22. The statistical tools such as descriptive statistics, correlation and Mean Return were used in this study to examine the performance of sample sectoral indices during the study period. The analyzed information shows that the overall performance of top five sectoral indices of NSE is growing in consistent manner. Further, it indicated that the selected sectoral indices were related with each other.