The Bombay Stock Exchange Information Technology Index, consisting of IT Stocks. The study examines the efficient market hypothesis using the runs test to assess the weak form or semi-strong or strong. According to the efficient market hypothesis idea, stock markets are efficient and security prices completely represent all available information. Because EMH reveals that efficient markets are impossible to achieve, it is impossible for any investor to get above-average profits by trading in the stock market. It indicates that all accessible information is absorbed into stock prices, therefore no investor can exceed the stock market. Using the runs test of randomness, the article investigates just the dependency of consecutive price fluctuations on their past. Secondary data, including of 05 BSE-listed companies, is used to test the hypothesis. The monthly adjusted closing prices of these 05 firms were considered during a 14-month period. The updated closing prices are shown in the results.