Portfolio management is a vital aspect of decision making process for any investor. It is crucial for the investor to take a call as to where to invest and how much to invest. The present study focuses on constructing the optimal portfolio with the help of Sharpe Single Index model. Sharpe Single index model uses various inputs such as excess return to beta ratio, unsystematic risk, market return and variance etc to construct the optimal portfolio. In present study, portfolio is constructed from IT stocks of NSE IT Index. Montly data is collected from Ten IT companies of NSE IT for the time period of One Year from December 2016 to November 2017. Out of 10 stocks, 5 stocks are selected for investing namely MindTree (32.127%), Infibeam (4.30%), KPIT (17.761%), OFSS (26.117%) and Wipro (19.691%)